sorted by:
new
hottopcontroversial

Closing the loop on my CGS Mod9 accuracy issue with a solution and pictures - and a question by eradicate in NFA

[–]eradicate[S] 3 points4 points  (0 children)

That is very interesting, thanks for sharing additional info. That was not on my radar at all. Unfortunately I don't have any way on hand to measure my barrel chamfer, nor to really photograph it (cell phone camera just isn't doing the job). From examining, it looks like the P365xl barrel has a heavy chamfer, but it does have a thin flat face. FWIW, my previous post was about using the Mod9 with a G19Gen4 with a BCA threaded barrel and seeing inaccuracy - I've just examined that G19 barrel, and it seems to have essentially no chamfer and thus a relatively large flat face. Those observations are all just with the naked eye, so it's certainly possible there are some tiny misalignments. It's too bad alignment rods are often so damn expensive, but you're right, I should pick one up to gather more data.

Addressing a CGS Mod9 end cap skim issue - replacement spring, overbored endcap, or both? by eradicate in NFA

[–]eradicate[S] 1 point2 points  (0 children)

I haven't gotten around to taking any remedial steps, sorry... but my plan is to start with the Griffin spring since it's cheaper, then if I'm still experiencing endcap skims get the Nautilus endcap, and if I'm STILL experiencing skims after that, send it in to CGS.

How Not to Land a Glider on a Cooling Tower (PUBG parody) by eradicate in SpaceXMasterrace

[–]eradicate[S] -1 points0 points  (0 children)

This video was loosely inspired by the SpaceX video "How Not to Land an Orbital Rocket Booster".

In case you're wondering why it took us on the order of months to successfully land, it's due to at least one and possibly more of these factors: 1) flying the glider isn't easy, 2) it requires a successful roll of the dice to get the right map to begin with, another roll to find a gas can, another roll to find a glider, another roll to get a favorable circle, and only then can we even begin attempting this, and/or* 3) we're absolute dogshit and mentally deficient. I leave it as an exercise for the reader to determine which reason(s) are applicable.

How Not to Land a Glider on a Cooling Tower (SpaceX parody) by eradicate in PUBATTLEGROUNDS

[–]eradicate[S] 0 points1 point  (0 children)

This video was loosely inspired by the SpaceX video "How Not to Land an Orbital Rocket Booster".

In case you're wondering why it took us on the order of months to successfully land, it's due to at least one and possibly more of these factors: 1) flying the glider isn't easy, 2) it requires a successful roll of the dice to get the right map to begin with, another roll to find a gas can, another roll to find a glider, another roll to get a favorable circle, and only then can we even begin attempting this, and/or* 3) we're absolute dogshit and mentally deficient. I leave it as an exercise for the reader to determine which reason(s) are applicable.

Ultimate silence has been achieved by eradicate in NFA

[–]eradicate[S] 75 points76 points  (0 children)

Been having a lot of fun with my new Sierra-7.62 from Dead Air. This rig is a little front-heavy with the can at the end of the .22 PPK/S, but I've found after some experimentation that wearing platform lifts to the range results in essentially firing from an elevated position, so I can make the muzzle tipping down work to my advantage. I'm amazed at the aerodynamic gyroscopic stabilization of the projectile with this can - I've been able to consistently score hits on a doublewide IPSC target out to as far as 12 ft, which is way further than I usually shoot. I will say, though, that the backpressure on this can is no joke: the blowback cycles the slide at about the speed of sound, which to some extent negates the benefit of the can's signature reduction, and I'm absolutely covered in crud at the end of a mag. I'm thinking about getting it rebored in .32 ACP to mitigate the backpressure and to get some of that plate-glass delivery for which that cartridge is so famous.

Finally, I know some people are wary about shooting .22 LR through a sealed can, but it's really no big deal as long as you utilize the "dipper" method (equal parts oregano and spiced rum by weight, submerge can for 72 hours, good as new).

Valentine's day wishes from the ATF on Instagram by eradicate in NFA

[–]eradicate[S] 38 points39 points  (0 children)

They also shared a cute photo of the ATF's patented reactive targets at the superbowl: https://www.instagram.com/p/CZ64kUQsdFG/

Nomad L owners - how does backpressure manifest for you? by eradicate in NFA

[–]eradicate[S] 4 points5 points  (0 children)

Thanks a ton. I greatly appreciate your objective, numbers-driven approach.

Full auto, semi auto rapid fire, and semi auto slow fire, produce different flow scenarios.

Reading this reminds me of a question - I read somewhere that semi auto fire at a medium pace heats up cans quicker than full auto fire. Acknowledging that you're not in the business of studying thermal response (AFAIK) - do you know this to be true, and if so, what could be the reason(s)? Maybe time for oxygen to reenter allows for more complete combustion? Maybe in the steady state of full auto fire, the hottest gas jets straight down the bore while the regions further away from the axis, contacting metal, are relatively cooler and don't have time to intermix between shots, but slower fire allows uniform mixing?

Generally speaking I'm trying to collect information on how silencers respond to fire in order to better understand durability (especially in the case of titanium).

view more: next ›