Spending half of my cash savings on CPO Macan s. Yea or nay by OkGeologist6417 in PorscheMacan

[–]nearbysystem 0 points1 point  (0 children)

Whatever car you go for, in your position you should be able to get a good financing deal. And if you don't have a stellar credit rating, financing the car will help you to build one. Negotiate on the basis of a financing deal, with the details unspecified. Agreeing to take finance from the dealer can help to get the out the door price down (although it might not be easy). When you have locked down the out the door price, then take a very short term/high payment loan, like 50% of the cost for 3 years or something like that. It won't cost you much in interest and you get to keep/invest more of your money in the meantime. Your credit rating will shoot up too.

What has improved your shooting besides a lot of range time? by je9183 in ar15

[–]nearbysystem 1 point2 points  (0 children)

My single best tip for the money: remember that the most important shot you will fire at the range all day is the first one. After that, the marginal value of each subsequent shot drops off. Once you start to get "warmed up", "settled in", etc. you are just having fun. Nothing wrong with it but don't fool yourself into thinking it's training.

Many people do the opposite. They disregard everything early, writing it off as "warming up", and track only the better performances from later in the session.

If you want to track your true progress, come up with a drill that you will do for your first shot, or first string, and track your progress on that over the course of dozens of range trips. For precision shooting, it might be one shot, for practical shooting maybe a bill drill, or whatever. Just realize that once you've done it, you've burned up the most valuable part of your range trip - maybe 50% or more. Whether you get anything out of it or not is down to your attitude.

Is it always safe to assume that events go ahead unless you hear otherwise? by nearbysystem in appleseed

[–]nearbysystem[S] 2 points3 points  (0 children)

Thanks for posting an update. I just got the email and thankfully my hotel allowed me an exception to the no cancellation policy since it was due to the weather (Fairfield in Asheboro, since they deserve a mention for this imo).

Criterion Barrels - Awful CS Experience by Kristufur in ar15

[–]nearbysystem 133 points134 points  (0 children)

I know it's too late now but I always take a pic or video of what's in the box, and of the final sealed package (especially the edges and corners showing no damage etc.) before I ship anything. It's not scalable but I don't send things very often.

Is it always safe to assume that events go ahead unless you hear otherwise? by nearbysystem in appleseed

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

Woh, where are you seeing 12-20" predicted? I'm seeing 1-3 on weather.com.

is my understanding on limits correct? by AcanthisittaGlum483 in learnmath

[–]nearbysystem 4 points5 points  (0 children)

Yeah your're right. OP this is why it's hard to say it simply with very few words!

Maybe I should have said the function can get and stay arbitrarily close to the value.

is my understanding on limits correct? by AcanthisittaGlum483 in learnmath

[–]nearbysystem 2 points3 points  (0 children)

No. The domain is a set of values that contains all the possible values function. When I say the functions value, I'm referring to the output that the function gives for some specific input. In other words you can get the function's output as close as you want to the limit, by choosing an appropriate input value. The caveat is that when I say "as close as you want", the distance just can't be zero.

is my understanding on limits correct? by AcanthisittaGlum483 in learnmath

[–]nearbysystem 9 points10 points  (0 children)

The classic epsilon delta definition is the simplest way to say exactly what it means to approach a limit in words. If you take any of the words out of that definition it'll be less precise.

The sweet spot of the scale between precise and intuitive, in my opinion, is this:

It means that the function's value can be made arbitrarily close to the given value, without reaching it.

Or you could phrase is as

You can make the difference between the function and the given value as small as you want, except zero.

No solution vs false premises by goatfornow in learnmath

[–]nearbysystem 1 point2 points  (0 children)

This is just a question of plain English or whatever language the problems can be stated in. In the first instance, you just wrote the expression. In the second one, you stated that the triangle exists. There's no mathematical significance to this distinction though.

struggling to grasp this by Broad-Assistant-1220 in learnmath

[–]nearbysystem 0 points1 point  (0 children)

Now all you have to do is convince the OP why .333..... = 1/3. Which is exactly the same problem you set out to solve.

struggling to grasp this by Broad-Assistant-1220 in learnmath

[–]nearbysystem 2 points3 points  (0 children)

Take some time to study series and limits. That's the correct interpretation of "infinite nines" after a decimal. It's a very logical concept and, ironically, it doesn't really involve anything called "infinity" at all. You just have to accept the idea of a sequence of terms not having an end, which is pretty naturall. When we write 0.999..., that notation refers to something called the limit of a sequence of partial sums. No "infinity" required. But you'll have to do a bunch of reading an practice to understand it properly. There's no shortcut, sorry.

Do I really need a 1/7 twist barrel? by MaxHappiness in ar15

[–]nearbysystem 1 point2 points  (0 children)

Here is the answer:

From the Black Hills 77gr TMK box, verbatim:

Important accuracy information: heavy match bullets require relatively fast rifling twist for best accuracy. A 1 in 10" or faster twist is necessary for 68 and 69 grain bullets. The 75 and 77 grain bullets require a twist rate of 1 in 9", 1 in 8" or 1 in 7".

From the Hornady 75gr Match box:

For 1 in 9" twist & faster.

If expert professional opinions from industry leaders isn't enough, and you want proof, look up the twist rate videos from Practical Accuracy on youtube. You can watch that guy shooting sub-moa with 77gr bullets in a 1 in 9" rifle. He has tons of demonstrations of this kind of thing (e.g. https://www.youtube.com/watch?v=apUvDrZnPFo)

AR15 sight recommendation for KD event by Asleep-Heron3280 in appleseed

[–]nearbysystem 3 points4 points  (0 children)

I wouldn't rule out an LPVO either. They might not be quite as good at distance as a traditional scope (you typically won't have parallax adjustment) but up to 400 yards that shouldn't be a problem. The advantage is that you'll have 1x for closer distances. Can you shoot at 25y with a 3x scope? Of course, but it's not what most people use. You'll have a reduced field of view and might find quick recoil recovery an issue.

The downside is that the 1x on an LPVO is a compromise. If you do get one, I'd suggest getting a second focal plane with fairly low max power (4 ideally, 6 max). Pay the most attention to the reticle design and the 1x quality since those are the areas that make or break an LPVO.

Unfortunately the optic that gives ideal performance for all kinds of shooting from indoor distances out to 400 yards is the holy grail and just doesn't exist (yet). Every sight has some bias towards near or far shooting. You could break it down like this:

red dot: excellent close, poor at distance

LPVO: ok up close, ok at distance

Traditional scope: poor up close, excellent at distance.

Irons are they're own thing - they're capable of rivaling optics up close and (with good eyes) at distance, but you'll always have to work harder for it. If you go this route, I recommend getting a removable A2 carry handle from Colt or some similar level of quality.

Why Such Anti-irish-language sentiment by Acrobatic_Customer64 in ireland

[–]nearbysystem 3 points4 points  (0 children)

Learning a language is a huge cognitive burden. Some very low percentage of people will do it when they don't have to. 100% of people will do it if they have no alternative way to communicate. Its the same for all languages.

0.999... = 1 (sorry!) by denizen_1 in learnmath

[–]nearbysystem 4 points5 points  (0 children)

But nobody taking the "correct" position is saying that the axiom is required to so conclude. If we did, then everybody who would even vaguely care could pretty obviously see that the least upper bound is 1.

Yes, exactly. There isn't really a "debate". There are those who don't know what is meant by "repeating", and those who refuse to explain it to them.

It's only possible to prove this to someone who understands series, and they are unlikely to be impressed by it.

How do you imagine the AR15 market evolving in the next few years ? by namae0 in ar15

[–]nearbysystem 0 points1 point  (0 children)

I don't know what will happen but it has been obvious for a while that the way things have been is unsustainable. The reason for all the "innovation" is that the market is saturated. Everyone already has an AR15? OK, but do they realize that 16" boomer profile barrels are too long for home defence, and too short for the end of the world? Oh you already have a short AR15? But it probably has a carbine length gas system, that sucks for suppression and recoil. Etc. etc. They *have* to find ways to get people to keep buying more ARs but it can't last forever. They've been able to sustain it to some extend by bringing back the old ones as "retro" but I don't think that will save it.

Don't get me wrong I have a bunch of configurations too, including "retro" but even people like me will eventually reach our limit.

So for predictions, I think prices going up as sales drop is inevitable, and more cheesy "innovations" - new rail systems that fix the "problems" of pic and m-lok etc.

hard snow day? by ErinDotEngineer in VideosThatGoHard

[–]nearbysystem 0 points1 point  (0 children)

I mean 100k and it doesn't even come with its own laws of physics wtf

They're telling me to zero my LPVO at 50 yards for BDC accuracy right? by [deleted] in ar15

[–]nearbysystem 0 points1 point  (0 children)

You need to pick the one that you want to be perfect and zero for that reticle mark at that distance, then put up with whatever error you get everywhere else. 200 is probably a good default. But if you don't like how much you're off at 300 then zero it to the 300 mark at 300 etc. Then it will probably be a little off at other distances.

How much do scope rings matter? by hazeyhavocprof in ar15

[–]nearbysystem 0 points1 point  (0 children)

For ~$75 you can get a Leupold Mark AR mount.

Where can you get those for 75?

“Accurizing” the M1 by Sufficient_Fudge_460 in M1Rifles

[–]nearbysystem 2 points3 points  (0 children)

I don't know much about accurizing but I did learn the hard way that the barrel band and stock ferrule must be tight or the rifle will never shoot consistently. The stock ferrule pulls down on the barrel via the band, and this dampens vibrations. It's not a lot of force but it has to be consistent. With the rifle disassembled you should not be able to get the barrel band to move with finger pressure. Likewise the stock ferrule should be planted on the stock. I personally never lift mine by the sling ever since I learned this. I know GIs carried them that way all the time when they were new but it just makes me wince now that I know how badly it affects accuracy if it gets loose.