Gah! You made a critical fantasy firearms sin! Very few guns have an ejector that doesn't line up with the barrel Typically the magazine and extractor line up too, as that minimizes how much the bolt has to move to cycle rounds.
I have a question about that machine gun. Is it supposed to operate like a M249 SAW? I'm just wondering about that barrel. Most MG's need to have the barrel changed mid-fight for cool-down. I see that you have the handle for it, but the frame seem to block it from moving. I'm probably thinking aout it too much but I kind of wanted to ask.
but the shooter inside of me, needs to tell you that for the .50cal rifle you'll want a longer barrel say 30inch (scaled accordingly lol) otherwise it'll be useless at long range as the round will have less stability
Not really true. For accuracy a shorter, more rigid barrel is the way to go. You'll get essentially the same long range performance of a longer barrel, but in a lighter, more compact package. Sure, you'll have to dial in more elevation in your scope, but that's better than not being sure how the barrel is going to flex when you fire. As an example, it isn't that uncommon to see 20" .308s shooting at steel at a mile. (And it's still in the same power range as a .45acp at the muzzle at that point).
But this is all relevant to your range though. Shooting up to a 1km I'd much prefer having a 30inch barrel over say a 26 or 28inch. I have certainly noticed the effects as with the longer barrel my grouping remains much more consistent and tight. On a shorter barrel there was a tendency for groups to be a tad big larger as well as the round succumbing further to the effects of wind and mirage. Sure you can hit something with a shorter barrel, but as a target shooter I require far greater accuracy than that of someone doing 'plinking'. Same goes with a sniper, you want a rifle that will put a round where you want it and not have to be doping or adjusting more just to hit what you want. Having to dope more is an extra hassle as wind conditions can vary in the blink of an eye.
Considering I've seen hits on a 16x16" steel plate at a mile with a 20" 308, I'm not really all that worried. Also; re Mirage: that's got nothing to do with barrel length, but everything to do with your scope. And if you can't see it, you can't factor in your wind. And I got to be honest man, nobody really argues 26 vs. 28 vs. 30. It's really more 20 vs. anything longer....
Пригляделся поближе - выбор патронов для карабина и пулемёта доставил Только тогда бы барабан у пулемёта должен быть более коническим, гильза с рантом, да ещё и на конус сильно сходится. Хотя это конечно мелочи.
Можно, но с досыланием из магазина могут быть проблемы, патронам лучше контачить между собой по всей длине, а не только в районе ранта гильзы, меньше клинов будет. Примерно как магазины "улиткой" для АК. Хотя это конечно мелочи(2).