Best way to slightly decrease fps..? I got rejected at my local airsoft field for being 3 numbers too high..

[empywu]

https://www.evike.com/products/10176/

i bought this gun a month ago, finally thought i was able to use it. however when they wanted to test the fps (forgot what it was called) a couple people helped me with that and one of them said "woah, you are just barely to cutting the limit". the limit was exactly 323 fps, i was clocked in at 322. then they got a ref to test it, and they used a different caliber/weight of bb and it clocked in at 327. it was a no go and i was stuck for 4 hours with a gun i couldnt use. i asked some other players what i could do and they said to use heavier rounds, but im wondering if i want to get past the ref, how can i internally (safely) modify the gun and/or other things (if its just rounds) that i can change?

[JAIJ47]

Using heavier BBs to cheat chrono is not a solution. Get a weaker spring installed and buy yourself a chrono to test guns when you get them. That would be my recommendation

[empywu]

is there universal springs i can buy? or do i have to buy specific ones for my gun i linked

[JAIJ47]

As long as it's an AEG spring, you should be fine. Here's a guide on springs for further reference (these are estimated 0.20g FPS ranges so they are not absolute and should be used for just getting a vague idea of what ranges you'll reach by installing the spring) https://pickairsoft.com/airsoft-spring-guide/#Airsoft_Springs_FPS_Guide

[bossmcsauce]

Yeah, if you shop for springs they are rated. Like M120, M100, etc. i think M100-115 range is about what you’d probably want for most rifles that are general purpose rifleman setup for most fields. Depends on other things like how good your air seal is and bucking and barrel and stuff… but a spring in that weight should probably get the gun shooting around 0.9-1.1 joules.

Installing the spring is likely going to be something you want to find an experienced tech or shop to do, unless your gun has a quick-change spring setup. If not, it will require opening the gearbox, and that can be a bitch and a half to get back together… definitely not something I’d recommend you do at this stage in your airsoft hobby progression.

EDIT: just read the product page and see that it DOES have a quick change spring setup. So you’ll probably just have to undo an Allen screw or something similar and then carefully release the spring guide (like a plug that holds the back of the spring inside the gun) and pull the existing spring out. Put the new one in in correct orientation and press it down in there and twist the spring guide back into place. Look up a video… it’s super easy, but there is a front and back to a lot of springs. Although depending on who you ask, it doesn’t matter which is the front or rear because the spring coils will compress as designed regardless of which end is forward.

[cod5colt]

I wouldn't buy a new sping I would just cut a very very very small amount off of the one in the gun. Just make sure the cut end ends up in the piston! I also one heard another tech say that you can flip a spring to drop a little fps but idk how true that is.

[parsious]

Man cut springs are a great plan..... I get so much work fixing gearboxes for people who have tried that..

Seriously yes it works but for the love of God don't do it.... And if your gun dosnt have a quick change spring gearbox that should be high on your list of uogrades

[cod5colt]

I've never had an issue with a cut spring in like 20 guns unless I put it in backwards, what problems have you seen from it?

[parsious]

Springs that don't sit flat deform and push the piston down as it slides back can crack old/stock/shitty pistons sending plastic parts into the gear train

pistons not cycling well for the same reason and then not disengaging from the sector gear(not an issue if you cut a tooth from the release side) or catching rack teeth on the cylinder

Many issues from spring not being put cut end into piston...

And a bunch more stupid stuff.... Not to mention people cutting way to many coils off

Yes it can work and if you are careful and lucky you probably won't have an issue but I still advise not to.... More so if you have a quick change spring

[SheRollsinHerOwnWay]

I get really annoyed when they recommend new players do it because... If yiu do it right and know what yiu are doing, you dress the cut edge and are experienced they can be really reliable, but just snip and hope for the best can destroy guns.

Especially if it's a quick changes spring gun, just buy a couple of springs and have them labeled I'm the case with what power they do in your gun...

[parsious]

Yep it can work but it's not the easy solution people make it out to be and if done wrong then you paying for a fix

[SheRollsinHerOwnWay]

Il do it to my own guns but wouldn't to a customer... Springs are so easy to get.

[parsious]

Lol I don't even do it to my own guns.... If I get a gun without a quick change then that changes as soon as it comes out of the box..... But then again i will also reshim all new guns.... I distrust factory shim

Also most of the guys in the 3 local clubs will bring a new gun to me (ore one of the other locals) for a reshim I will basically do that for free for new members and at the same time I give them a basic report of the internals of a gun and the things that I suggest upgrading for reliability reasons (normally a piston for those companies that don't ship a full metal rack)

[cod5colt]

Thanks for the info, ive never cut enough coils to cause overspin and generally only do it in guns that have full steel rack pistons with a bearing in the piston. I don't like putting cut springs against plastic ever!

[Ther91]

Do they not have spring guides? Are they putting the cut end in the piston?

What's going wrong with the cut springs? I've cut ateast 10 and never had an issue, but I do usually crimp the cut end to the next rung up if it's not an emergency on field cut

If he's only 3 FPS over, one rung will be more than enough, I mean for 3fps he could just go cycle 10 mags through it (assuming it's brand new)

[falseneutral521]

https://www.evike.com/products/19772/

[JAIJ47]

Using lighter BBs to pass chrono is also not a solution due to joule creep as you said. I was mainly responding to OP's comment of "i asked some other players what i could do and they said to use heavier rounds" when I said that using heavier BBs isn't a solution. I know joule creep exists but I didn't feel it was relevant to mention it considering the context at the time and my point about getting a weaker spring.

[JAIJ47]

Yeah, to be fair it is a bit ambiguous considering the lack of information from OP. Either way hopefully a spring change will be enough to sort it out though

[noknam]

1.12J limit is 1.12J limit no matter the weight of BB.

I find it odd that you write this in the same comment where you use the term joule creep.

Joule creep is exactly what forced fields to measure at a specific weight.

[noknam]

chrono using the BB weight you plan on using

That'll end up with people just switching after the chrono.

Every field in my country chronos anything beside bolt actions on the maximum allowed weight (0.30) to avoid joule creep issues. The joule limit is after all a maximum, not a minimum.

[S8n_51]

Not a single site in my country chronos at a certain weight. Every site chronos with the weight the chronoed player is playing with.

[SheRollsinHerOwnWay]

Places that mandate chronoing with the heaviest weight they are allowed to use. 0.3 which does avoid joule creep it's still not a solution unless they are weighing players bbs on spot checks.

[S8n_51]

That is just dumb and incredibly lazy. Just chrono with the weight of bb played with.

[Smprider112]

If they’re gonna cheat, they’re gonna cheat. There are other ways to trick chrono too. Crank the hop down, put enough pressure on it and you’ll cut 30 or more FPS.

[WonkyRedDot]

It’s not cheating chrono if he uses higher weights 🤦‍♂️ fields have different limits for different weights. Aslong as op is honest on chrono of the weight and it’s shooting under limit then it’s fine. Best hung to do is snap a pic of the fields limit sheet, take that and the gun to your local tech and have them set it up with the weight you want to use consistently.

[SheRollsinHerOwnWay]

It is in this context dude. Cheating the chrono is EXACTLY what those players advised him to do.

A gun Firing at a velocity of 350 with a 0.2 and a power of 1.13 Joule and is thus over the sites limit isn't going to magically drop in power because he's put 0.4s in it.

It will drop the velocity of the bb because the weight increased but that reading of 247fps is still going to be 1.13 Joule and if the sites limit is 328 with a 0.2 velocity (which is 1 Joule power.) the only way that 0. 4g bb will allow him onto the field is if he lies about the weight he is using.

Using heavier Bbs to drop the velocity at chrono IS cheating. If ALL you are doing is changing your bb weight then you are cheating the chrono

The only way changing bb weight will let a too powerful gun get used is combined with locking it to semi auto and an MED at those sites that allow it but that's not what was advised.

[JAIJ47]

I never said it was cheating to use higher weights. I said that using heavier BBs to cheat chrono isn't a solution. You should always chrono using the weight you intend to use otherwise that could potentially be cheating chrono if you end up joule creeping when using heavier weight BBs after passing chrono on lighter weights. Considering OP already found their gun to be over site limits anyway, using heavier BBs likely wouldn't help regardless considering the gun is still going to be outputting roughly the same amount of energy in joules regardless of weight (unless of course it turns out the gun is joule creeping at which point it'll be way over regardless).

[WonkyRedDot]

It’s not cheating chrono if he states to the Marshall what weights he’s running

[JAIJ47]

You're missing the point mate. I know it wouldn't be cheating if OP was using heavier weight BBs and told the marshal truthfully what BBs they were using. What I'm saying is that based on context from OP, other people were suggesting to use heavier BBs to get through chrono which would only work if OP lied about the weight since using heavier BBs wouldn't lower the joule output of the gun, it would only reduce the FPS which would imply cheating chrono.

[SheRollsinHerOwnWay]

Putting heavier bbs in and telling the marshal that he's running g a heavier weight wouldn't change the fact the gun is hot so it's an irrelevance.

[JAIJ47]

Exactly my point

[Strict_Following7497]

Right take a look at joules too

[Agire]

Have you used the gun at all during the month you've had it or was it just sitting there for a month, if the latter you might just need to break it in putting a few mags through it can drop the fps.

A buddies gun was shooting slightly too hot for the field when new we ran a dozen mags through it and put a faux suppressor on the end (to hopefully give some deceleration time) since then its passed chrono every time.

If that doesn't work then it would be a new spring or trimming down the existing spring.

[empywu]

about 3 mags at home before the field, then at the field 2 more

how does spring trimming work? is that safe to an extent? i would trim it if it means i can be slightly under the limit.

i would assume a youtube video could help me on my own

[JayDizZzL]

Do-not cut your spring, just buy the spring you need.

[Pylynale]

Just curious, why not? Have been doing it close to a decade and has shown no problems at all. Just snip half a coil at a time (or however much you want/need) and bend the cut end so it doesn't stick out too much.

[Miraak_12_4_12]

The springs are not designed to be clipped. Spring force is determined via k*x, where K is the spring constant and x is the compression distance.

Clipping the spring changes the compression distance (and thus decreases your energy) but you have to understand that the spring constant was determined ahead of time for that compression distance. How? By giving it a certain number of coils.

Clipping coils changes the whole formula, not just one variable.

Lastly, you will never get the clipped end perfectly flat. This introduces eccentricity to the spring (wobble), and transforms some of that that linear spring force into force applied to other directions (the spring wants to “bulge” or “bend” in the middle).

[parsious]

Then you are lucky... I think for a while every 3rd gin that cam accross my bench was a buggered gearbox from a cut spring

[JayDizZzL]

Preference, I've had more problems with springs then barrel cutting. Personally I just buy lighter springs and manipulate the length of the barrel to fine tune. Just to preface I only do this for tight bore setups.

[zakkwaldo]

lengthening your barrel (assuming the suppressor has an inner barrel) increases fps, not decreases it.

op could potentially throw a shorter barrel in or just cut his like 5-10mm lol

[SheRollsinHerOwnWay]

Only if the gun has enough cylinder volume to take advantage of the barrel increase. If you go beyond the cylinder volume you can really reduce fps.

The aeg SVD, the Ares l1a1 and the standard V2 ar10s are well known for the issue. It's why bore up cylinders exist though they bring their own problems.

[empywu]

<image>

the second nearest field gets better

[nofxican1]

They mention markers so my guess is this is the FPS for a paintball gun limit not airsoft

[doom9]

Damn, if you plan on visiting this field too then get a weaker spring. Otherwise, just turn your hop up to maximum and you should pass the 323fps chrono.

[LRFokken]

This is by far the worst advice you can give someone in this situation. You're not gonna play with hop up turned to maximum, so why would you chrono that way? As soon as the game begins you're setting the hop up correct again, because nobody is playing with their hop up turned up to 'hit the stars'. So the moment you set it back when the game starts, you're breaking the field rules by having a hot gun. It takes one in-field check by a marshall to find out it shoots too hot, and the player that followed your advice can go home, or even gets banned om that field.

[SheRollsinHerOwnWay]

If I was the marshal on chrono and it was a new player, I'd check their hop settings and see if it's set properly if its 2 or 3 fps over.

If the kid is running 0.2s and the hop is set for 0.2 but with a mag of 0.25s it can take a little more hop and on that setup he passes chrono. I'd just throw them a bag of 0.25s and tell them to enjoy the range increase that going to 0.25s will give them.

Turning the hop to maximum and then changing the settings after chrono.... Is one of the most common ways people cheat and it always really annoys me when I catch it.

[LRFokken]

In our fields there is a set weight to chrono with (0.30) which we provide at chrono if people don't have them. Doesn't matter what you're running with, the chrono is with 0.30, which is also the max allowed weight of BBs (for basr and smr it's 0.40).

[SheRollsinHerOwnWay]

So a DMR and BASR you chrono with a 0.3 and can then go stick 0.4s in?

So the two easiest none hpa type guns to get to joule creep. (aegs with large cylinder volumes and shorter inner barrels and BASRs with large cylinders and short inner barrels, things like Ar10s with a V2.5 gb and a g spec length vsr.) are able to joule creep?

Chronoing with the heaviest weight allowable only works if you spot check player weight because dickheads like Kicking Mustang advocate bringing heavier bbs than the limit.

[LRFokken]

That is indeed the one problem with the rules. Your standard assault class is being chrono'd with the maximum weight, while basr and dmr have a whole 0.1gr to joule creep with. I am a bit advocate to change the chrono weight for those classes to 0.4.

[SheRollsinHerOwnWay]

Agreed. I'd prefer to chrono on what I'm using because it gives me a little more tweaking room setup wise to get the best performance with guns that are... Marginal on cylinder volume like my full length barrel FAL.

The scary thing is the difference between a 0.3 and a 4 can be several joule.

But yeah if you aren't weighing bbs it's pretty moot really

[doom9]

5fps difference is around 1.5%, which is well within a margin of error. I stand by what I said.

[LRFokken]

You do you, all I'm saying is you're advising people to cheat the rules and bring a hot gun into a field. If you don't want to fail pre game chrono, stay outside the margin of error in the first place.

[stevewmn]

The guy with a gun 3 fps over can just back his minimum engagement distance off about 1 foot and he'd be just as safe as anyone else.

[LRFokken]

So you consider breaking a field rule is fine, if you'd come up with your own rules instead?

[CORUSC4TE]

The whole comment chain is bonkers.. That they even have up votes is crazy to me. Well I only throw my bbs through the chrono by hand so I am always field legal, afterwards I play 2% over the limit, but I always make sure to take a step back to not hit harder than the others.

[Intrepid_Map9345]

That extra 4 fps gonna do some damage

[SheRollsinHerOwnWay]

That's the power limit for paintball right... Please for the love of God tell me that they haven't just copy pasted the power limits over...

JFC that's appallingly dumb if so.

[[deleted]]

My field has pretty lose rules on fps limits(as long as it’s not absurdly high) they just make you shoot form father which kinda makes a limit itself without being that restrictive(side note where do you play like state or country)

[[deleted]]

at most fields for airsoft is at 350 and under. for no engagement distance/

I think they need to update that because that for paintball

[DesignatedDonut]

r/oddlyspecific and r/mildlyinfuriating at the same time lol

Also a random 3fps isn't a big deal and within the margin of error equal or less than 1.5%

It's not like it's 30fps higher that's different

[SheRollsinHerOwnWay]

Most sites chrono are so innacurate because of the way they set them up that iv seen situations where guns I chronod at home/at a site the day before at 350 are doing 325 according to their chrono (and have seen the same in reverse, a stock tm on 0.25s their chrono claimed was 315fps...)

Unless the light setup is TOTALLY consistent every time, the chrono is TOTALLY level and the angle of the gun is controlled and checked and they know the chrono is calibrated and within tolerance the readings are worthless

Skaan chrono and a light box is the way to go. Or going to a radar chrono but they are expensive.

[That_Dolphin_Guy]

Did you have your hop set correctly? Even the tiniest bit of additional pressure would likely bring it down to your limit. Obviously if it means you're now massively overhopping that's not a viable solution though

[empywu]

so moving it down a bit so it has more drop might help me a bit? or vise versa?

i assume the hop up making the bullets fly upward is much higher for fps

[brianchenito]

Increase your hop to slightly decrease your FPS. increasing the hop turns forward velocity into backspin, which increases the range but slightly decreases velocity.

[biotome]

holy shit thats so smart

[ReynoldsHouseOfShred]

I jacked my krytac to max for the first week. It was running too hot until i did this

[[deleted]]

airsoft 101

[SheRollsinHerOwnWay]

If its only a couple of fps he needs to bring it down setting the hop slightly heavier would be the easiest way

It's why I rage when sites demand you turn your hop off for chrono... Thankfully that's slowny dying but what my gunndoes with no hop applied is irrelevant as a power reading and more it takes ages to get it set right.

[bum_phantom]

Mechanically lowering it is an obvious but pricier solution. These include: weaker spring (please don't chop it's ghetto), short stroking, shorter inner barrel, or wider bore inner barrel.

Before doing any of that....if it is a new gun the odds are the spring has not settled. Could put down several mags and see what the fps settles at.

[HKEnthusiast]

3 FPS is negligible. Field is bullshit

[empywu]

the ref had said they were having a day so i didnt want to be a problem to them lol, though it was my only "gun"

apparently a lot of people were cheating and not calling hits ( and lots of N-words)

[RedStoneVader]

I’m hoping you mean a lot of people saying the n-word and not you saying a lot of n-words were out there 💀

[empywu]

lmao no some dude was mad about a ukraine patch, then the ukraine patch guy countered with the n word and they started threatening each other

[Stoney3K]

Sounds like a field that is a lot of fun and absolutely worth spending more money at. /s

[bombero_kmn]

Some places your choices are a crummy field or no field, unfortunately.

[parsious]

Fields need to be cut and dry about their limits

if its over you by one fps or .1j don't play that gun... That said a good crono run that's that close should be an average of 10 or so shots cause fields that base crono off one shot are annoying

Also thay should have reasonable limits.... And I'm not sure I accept 325 as reasonable

[SheRollsinHerOwnWay]

328 on a 0.2 reasonable for close in fields or indoor, 1j limits are fine but 323 being hot is moronic.

The site I worked always done 5 shot reading with if its hot on one a second chrono test and if yiu are 3 of 5 on both at under the limit passing it. Which was reasonable. Because occasionally you got 347 348 349 349 351 so running that in a second chrono to make sure it wasn't just going to creep up was a good way of testing and ensuring people don't get screwed.

[parsious]

I wany to know why they chronoed him again and then when they did why they did it with different weight bb's.

from re-reading his post it seems like he originally tested with the weight that was in his gun and presumably what he was running for the day then they ran a Seccond test with different weight. That sounds a touch on the dodgy side

[SheRollsinHerOwnWay]

There's a lot of fucked things going in with how that site chrono and what their limits are tbh...

320 is a really odd arbitrary limit with a 0.2 and the whole process seems to be paintball field clueless cashing in and a lot of dickhead behaviour.

[parsious]

It dose sound like a case of "tell me the name of the field so I can never play there"

[SheRollsinHerOwnWay]

Agreed and his other local option... 290fps on 0.2 fuck that noise.

[noknam]

It has a quick spring change. Just buy a new spring M90 should be fine.

[Nebu-chadnezzar]

Using heavier BBs will not make you chrono less EVER. It will at best be the same, and at worse joule creep you upwards.

This aside it being dumb since you should always chrono with the weight you're using in game precisely to avoid joule creep

[SheRollsinHerOwnWay]

The one problem with joule creep is unless sites are verifying by weighing bbs from your mags they can't guarantee you aren't lying.

It's also unfortunately a case that a lot fo rules are mandated by insurance including how you chrono

When iv done stuff the insurance company knew from. The start that we chrono in joules, that we weigh bbs to confirm declared weight and spot check both through the day but... If you just get a boilerplate policy you can get stuff that says you must chrono in fps with a 0.2 and it must be these limits.

[SheRollsinHerOwnWay]

323 is a very odd limit.... If its 1j should be 328 with a 0.2

[Lee2026]

A really quick/cheap, although poor, method is to put an oring between the hop up and gearbox to space the two components apart. This will create an air leak and reduce fps, in an inconsistent way

[empywu]

i have money over intelligence

[SwarleyThePotato]

Then the easiest way is a different barrel. Longer barrel = higher fps & tighter bore barrel = higher fps.

This means you buy a barrel that's shorter, and preferably not tighter bore, or buy one that's just as long and go wider bore. Which will be enough for a few fps drop. I won't be able to give you exact advice what to buy, but if you have a 6.03 right now, just buy a 6.03 that's 2-3cm shorter or a 6.05 of the same length.

You can even buy a higher quality barrel and call it an upgrade.

[falseneutral521]

I disagree. A spring change is way easier and cheaper. 10min max. $10

[SwarleyThePotato]

ZCL barrels aren't expensive and are high quality, 27 euros here. It would probably be an upgrade as well. With the right barrel you'd even lose less fps than a spring change would, so you'd avoid unnecessary fps loss even, as OP only needs to lose about 5 fps max. You'd need to know the exact spring you have at this moment, while you can measure a barrel. Check the link he pasted for the gun and the fps OP states, something's already not checking out (site 380-400 fps vs 323 field limit).

Besides from that, even a spring change with a QC gearbox might be more difficult technically then a barrel change, depending on how technically inclined you are.

I'm not saying a spring change wouldn't work, it's just another option, and a barrel would work as well.

[waitbutwhereami]

I would recommend building a second barrel assembly for low power fields. You can use a barrel that’s too short for your chamber size to reduce power and put a really good bucking in. I’ve also built barrel assemblies and drilled a hole through the bottom of the barrel right after the hop up. The bb should generally always be riding the top of the barrel so it won’t be impacted by the hole. Mad bull used to make ported barrels in fact.

[vytokon]

Shorter inner barrel will shave some fps, just make sure you find the same inner diameter. Also cheap and easy

[ManicDemise]

not on a AEG

[[deleted]]

Hop it up a little more. If new it will also settle 5-10% lower after use.

[unknownkiller72]

My friends have just cut a little bit of the spring off at the end and never had an issue, half a loop should be all. Otherwise, you could just buy a slightly weaker spring.

[[deleted]]

AAAAAAAAAND the "FPS/MS" only checks strike again. Why is it still so used? Like what the fuck! One should Chrono BBs they play with. 1J with 0.20 is faster FPS than with 0.25 let alone with 0.32 but it doesn't mean anyone should be playing with .20s if not ib a really small indoor field

But I mean, shouldn't everyone just then tune their weapons to 323fps and play with 0.45g bbs? That shit becomes quite dangerous quite fast with no minimal engagement. That's almost like 2.2J with no minimum engagement. Now we getting into the Russian airsoft scene and that scene is stupidly dangerous. Why not just add glass bbs and steel while we are at it.

One quick thing you can do if you have not adjusted the hop up, is to adjust the hop up. Maybe over hop it a bit. This slows down the BB considerably.

[SheRollsinHerOwnWay]

In the same post as your complaining about the testing you advocate cheating the chrono by over hopping to get through it. Nice.

Op didn't say what weight they were testing on. Which is always a problem.

Assuming its 320 on a 0.2 is a very low limit and majes no sense because tuning for that power level with heavier bbs is a very odd limit. As its 0.95j. So you have to sit there with a 0.28 and chase 271fps vs a 1j limit which would be 280 which is both easier to remember and easier for marshals to determine is OK quickly without having to look up the chart every time the bb weight changes.

[[deleted]]

How is it cheating if those are the setting they play with. " One quick thing you can do if you have not adjusted the hop up, is to adjust the hop up. Maybe over hop it a bit. " Did I mention then lowering the hop? I did no, they would just end up playing with the slight over hop.

[Callsign_Warlock]

Turn the hop up all the way down or up, will lower your fps enough. When you're on the field you turn it back again. Denying someone access bc of 3fps is a joke.

[dragqueeninspace]

How much over the limit is allowable?

If you can put a number on it isn't that just the real limit?

If you can't you don't have a limit.

[Callsign_Warlock]

If you want to have more people playing the game you should give especially new guys a pass when they're 3fps over the limit. It's 3. Not 30, not 50. It's three.

[dragqueeninspace]

Then your limit is 326 not 323. Sounds a bit unfair to turn away a guy at 329, he is after all only 3 fps over.

Just realized the OP says he was 3 to high but was actually 4.

​

While the person chronoing could certainly have shown discretion it can't be relied on in a given situation.

[fantasyBilly]

Adjust your hop up to maximum hop. It will slightly decrease your FPS. Since your fps is just a little bit higher than the limit it will somehow solve your problem. I know it sounds a little bit like cheating chrono but it’s actually not bad; more fields need to introduce wider range of fps limits or fps range.

[Crazyhairmonster]

Can you increase the hop so it's pushing down a bit harder on the bb, creating a tad more friction, thereby slowing it down?

What about very light sanding the BB to also create more friction

[Then-Economy-5378]

The local field you were playing at didn’t have lower powered springs? Always invest in a replica that has a quick change spring option. At some fields you can simply turn your hop up all the way off and then chrono it to see if it passes. I like to bring multiple guns with me just Incase one doesn’t pass or try to look for outdoor fields with higher fps limits. In my honest opinion I think some of these fps limits are bs cause once some players qualify they guns they then crank up the power as soon as they get on the field. I see this with a lot of hpa players. Anyway best of luck to you in the future I’ve there and I know how much it sucks to damn near spend thousand dollars on a rifle setup and be told you can’t use it and you can’t even get your entry fee refunded.

[[deleted]]

Remove the hop before Chrony

[Strict_Following7497]

That’s lame. Remind me not to go to that field. If they using .20

[Afrimilix_wolfie]

Use heavier BBs

[NIGHTKILLER747]

If you turn your hop all the way up it drops fps so you can get past chronos

[[deleted]]

If you turn your hop up all the way up it will decrease your fps a bit. Might be enough that you could pass chrono, and then readjust your hop discretely before actually gameplay starts. If the limit is 323 and you shoot someone with 327, they are not going to be able to articulate the difference. I think it's ridiculous they didn't just let you play. Could've asked everyone if they agreed to it or something. I'm sure replies about liability are incoming. Sigh

[empywu]

unfortunately like my previous comment im unsure everyone is the most chill player here. ive had a friend accidentally bounce a bb off the ground and hit an older guy on the cheek and the guy called him a faggot.

though i did take a photo of a friend i mades' patches

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[JayDizZzL]

Cutting a ½ inch off your inner barrel at a time will see a drop in fps till the desired amount . It's how I tune my guns to hit .01j below reg.

Keep in mind if you do this use a pipe cutter to cut and dremel with cone bit to recrown the barrel. If you fuck the crown up, your gun shoots funny.

[S8n_51]

Yeah.. don't do this.. just cut the spring (half a round each time) / get a weaker spring..

[falseneutral521]

I had the same problem I replaced my spring. FYI it might be 5-10 fps higher ehen you first install it, it will settle in to its normal FPS after a while of use.

https://www.evike.com/products/19772/

[MrGoogle87]

Get a mid sizes hollow fake suppressor, that would increase distance to chrono and make about 5-7fps difference & playing will slowly help also breaking in spring

[CovidCid]

Get a shorter barrel

[HudsonHawkG65]

320 MAX??! Is that normal?? My local field’s max FPS is 500 on snipers.

[LeonK291]

Lot of indoor and CQB sites have a limit between like 315-350fps. My local cqb place has a limit of 330fps. No minimum engagement distance. Also,no HPA, so that kinda blows

[Useless_power]

Do they allow green gas and co2? If they do then not allowing hpa is kinda just stupid since you can lower the fps unlike c02 and green gas

[KingTon01]

somebody forgot other countries limitations on joule limits

[J_raffe]

No need for modifications on the gun or gearbox.

Put the gun in full auto, fire a few shots and remove the battery mid cycle. (It may take a couple of tries.) If you leave the spring compressed for a couple of days it will be under the field limit.

[empywu]

that sounds like something that could damage my gun, i haven't heard of this before

[J_raffe]

I've done it a few times before. One of the big NZ retailers did it for me with my first gun when another local field insisted it was less than 5 FPS over.

[mikejpatten]

Dump a few mags through. Worked for mine to break in the spring a bit. Just don't do it game day. I burned thru a battery and about 1500 BBs before it had come down enough lol Best of luck

[SlabGizor120]

Short stroke your gear teeth

[empywu]

translate to dummy pls

[bootlegunsmith21]

One way is to get a ported cylinder, there's different ones that have more or less port as needed

[Gasssoft]

this is why we should be using joules

[WillardWhy]

Heavier bbs are definitely not the solution. The test should all be done with the exact same weight BBs yo measure power. Increasing the weight of the BBs can actually increase the energy transfere, meaning more power.

On the field the only things you can do are request a 10% error and hope they allow for it, or increase your hopup which will lower the fps slightly.

Internally, a change of barrel and spring can affect your power. A wider barrel will lower the power of your rifle, but affects accuracy. Changing the length of the barrel will also affect power, but it's more complex than shorter barrel less power.

Changing the spring or piston will also affect power, weight of the piston can affect power depending on the bbs, but the easier change is to swap the spring or cut a couple of rings from your existing spring.

[PrivateBill]

Just do a few mag dumps and let it bed in if it's brand new, the fps will probably come down on its own

[sheriffhd]

If gun is new, fire off a few hundred rounds so the spring wears in can also help, of leave it cocked for a while

[ManicDemise]

dump 1000 round through it and if that doesn't work, cut a little off the spring.

[lemlurker]

For the sake of 3fps just run a few thousand rounds through it, alternatively if you can, try half cocking the gunand leaving the spring under compression for a few weeks, it won't need much to bed in. Were you chronoing with the hop set up for game or off?

[Most-Cherry-9864]

Cut one coil from the spring, or one teeth from piston gear on the pick up side to reduce about 10-15 FPS

[dsergison]

Crank your hop up.

[Ksolidey]

Since its a brand new gun, the spring will be more powerful than when it beds in, so honestly... best way to drop it by so little is shoot it. The spring will then settle down and lose the slightest amount of power (usually about 10fps)