Main Military Weapon of Your Country: Mod 7

[Vareiln]

Well, weapons in 9x39mm (popular suppressed round in the Russian military) use straight magazines, and 9x39 cases are derived from 7.62 Soviet cases.
You could get away with a short, straight magazine for this.

Saiga 10-round magazines have a curve to them, though.

[Samozaryadnyastan]

Well, weapons in 9x39mm (popular suppressed round in the Russian military) use straight magazines, and 9x39 cases are derived from 7.62 Soviet cases.
You could get away with a short, straight magazine for this.

Saiga 10-round magazines have a curve to them, though.

Because it's in either 5.45 or 7.62, not 9x39, being an AK.
http://www.mycity-military.com/imgs/112 ... 94%203.jpg
VSK-94. 9x39mm, straight magazine. I believe the 9A-91 uses straight magazines, as did early AS VALs and Vikr rifles.

[Nua Corda]

RP-1898 Obrez, y/n?

[Eastern Slavia]

VSK-94 is a fun little gun. Wish I'd had more time with it.

[Vareiln]

Why can't China export more of these things?

[Purpelia]

7.62 NATO was apparently optimised for 22" of barrel (M14). I imagine that older rifles were chosen for optimal length to give a person of average stature a good reach with a bayonet, rather than to give an empirical improvement on heavy rifle performance.
But ofc, I have no idea.
After all, the Mosin with bayonet affixed was 5'6 in length. I imagine, in 1891, that this was pretty close to the average height of the Russian infantryman.

So that's the only reason than? It has nothing to do with power and accuracy? I am asking because I use 7.5 Swiss and that is an oldish round. Oldish as in it was used in long rifles similar to those I mentioned. And I came to the idea of making a bullpup DMR that would have a ~800mm barrel and yet be no longer than the SVD. So given the role and the size would it be worth while?

[Aqizithiuda]

7.62 NATO was apparently optimised for 22" of barrel (M14). I imagine that older rifles were chosen for optimal length to give a person of average stature a good reach with a bayonet, rather than to give an empirical improvement on heavy rifle performance.
But ofc, I have no idea.
After all, the Mosin with bayonet affixed was 5'6 in length. I imagine, in 1891, that this was pretty close to the average height of the Russian infantryman.

So that's the only reason than? It has nothing to do with power and accuracy? I am asking because I use 7.5 Swiss and that is an oldish round. Oldish as in it was used in long rifles similar to those I mentioned. And I came to the idea of making a bullpup DMR that would have a ~800mm barrel and yet be no longer than the SVD. So given the role and the size would it be worth while?

Not unless you used a cartridge optimised for that barrel length.

[Samozaryadnyastan]

Which in the modern era you could probably do today by micromanaging how the powder would burn, thereby affecting the pressure curve and the barrel design into your favour.
I assume.

I failed thermodynamics, never forget that.

[Purpelia]

Well I figured that a cartridge that was around and used in a long rifle won't exactly be optimized for a shorter one. It might not be optimized for a long one either. But it should be somewhere in between.

[Aqizithiuda]

Which in the modern era you could probably do today by micromanaging how the powder would burn, thereby affecting the pressure curve and the barrel design into your favour.
I assume.

I failed thermodynamics, never forget that.

I'd think so as well.

[Aqizithiuda]

Well I figured that a cartridge that was around and used in a long rifle won't exactly be optimized for a shorter one. It might not be optimized for a long one either. But it should be somewhere in between.

Modern loadings have likely been optimised for shorter barrels.

[Bajireyn]

RP-1898 Obrez, y/n?

Yes

[Sevvania]

I don't think it's that long. It's probably only RPK sort of length.
Just as a note, with DMRs, you might as well issue reduced capacity magazines. It'll produce less vertical obstruction, so that the bipod can be used nicely. What a shame PMG doesn't have low-cap AK mags...

You could always just rotate the magazine, stick it in further, and use white shapes to block out whatever sticks out of the top of the gun.

It works quite well.

Just make sure to get the angle right. This particular example is supposed to be a 20-round mag.

[Yes Im Biop]

(Image)

made a DMR with a x4 zoom scope.

Shorter barrel, Smaller magazine, but a bigger bullet

[Immoren]

(Image)

made a DMR with a x4 zoom scope.

Shorter barrel, Smaller magazine, but a bigger bullet

Unless ammo commonality is wanted.

[Vietrosha]

SVAR-3 "Brother" - Full/Semi-auto rifle that takes 6.76x50 rounds in 10-25 round magazines and is a bullpup firing system integrated into an AK-47 design. The RSA stock and 20.33" counter wieghted barrel help reduce recoil as well as the pistol grip and frontal hand grip. A sand-colored finish is added on before finally being sent to the troops.

[Torrocca]

Shorter barrel, Smaller magazine, but a bigger bullet

Unless ammo commonality is wanted.

ammo commonality is indeed wanted.

[Crookfur]

7.62 NATO was apparently optimised for 22" of barrel (M14). I imagine that older rifles were chosen for optimal length to give a person of average stature a good reach with a bayonet, rather than to give an empirical improvement on heavy rifle performance.
But ofc, I have no idea.
After all, the Mosin with bayonet affixed was 5'6 in length. I imagine, in 1891, that this was pretty close to the average height of the Russian infantryman.

So that's the only reason than? It has nothing to do with power and accuracy? I am asking because I use 7.5 Swiss and that is an oldish round. Oldish as in it was used in long rifles similar to those I mentioned. And I came to the idea of making a bullpup DMR that would have a ~800mm barrel and yet be no longer than the SVD. So given the role and the size would it be worth while?

Old rifles have very logn barrels as msot of them started out using black powder cartridges or very early smokeless powder. Niether of which were particularly fast burning so they needed long barrels to get any kind of decent perfromance. There were other inclfuences like the fact many ordiance board still considered less than 30" of abrrel to be a carbine and the bayonet length as samo mentioned but the slow burning propellants were the driving force.

In regard to the 7.5mm swiss it does seems that by the 1940s the swiss had become perfectly happy with the round's perfromance out of 26" barrels and based thier sniper rifles on the K31 rather than the Rifle Model 1911. As such i wouldn't bother with anyhting logner than 26".

[Purpelia]

So that's the only reason than? It has nothing to do with power and accuracy? I am asking because I use 7.5 Swiss and that is an oldish round. Oldish as in it was used in long rifles similar to those I mentioned. And I came to the idea of making a bullpup DMR that would have a ~800mm barrel and yet be no longer than the SVD. So given the role and the size would it be worth while?

Old rifles have very logn barrels as msot of them started out using black powder cartridges or very early smokeless powder. Niether of which were particularly fast burning so they needed long barrels to get any kind of decent perfromance. There were other inclfuences like the fact many ordiance board still considered less than 30" of abrrel to be a carbine and the bayonet length as samo mentioned but the slow burning propellants were the driving force.

In regard to the 7.5mm swiss it does seems that by the 1940s the swiss had become perfectly happy with the round's perfromance out of 26" barrels and based thier sniper rifles on the K31 rather than the Rifle Model 1911. As such i wouldn't bother with anyhting logner than 26".

Thanks. That makes a lot more sense than the bayonet argument alone.

[Coltarin]

Why can't China export more of these things?

Because U.S. Customs stung Norinco for selling weapons to gangs.

[Spreewerke]

Why can't China export more of these things?

Because U.S. Customs stung Norinco for selling weapons to gangs.

Which is why the Type-56 rifle is pretty much my unicorn.

Dat underfolding bayonet.

[Coltarin]

Because U.S. Customs stung Norinco for selling weapons to gangs.

Which is why the Type-56 rifle is pretty much my unicorn.

Dat underfolding bayonet.

Well when Norinco reps are busted for offering to sell armored vehicles, and automatic weapons to gangs, along with allegations of helping the Iranians with their missile program we are not going to play nice with the Chicoms.

[Yes Im Biop]

Unless ammo commonality is wanted.

ammo commonality is indeed wanted.

Then use bigger ammo for your Mainline, Adding a few inches to a Barrel chambered in 5.56 a DMR it does not make.

[Torrocca]

ammo commonality is indeed wanted.

Then use bigger ammo for your Mainline, Adding a few inches to a Barrel chambered in 5.56 a DMR it does not make.

5.56

wut

[Spreewerke]

Which is why the Type-56 rifle is pretty much my unicorn.

Dat underfolding bayonet.

Well when Norinco reps are busted for offering to sell armored vehicles, and automatic weapons to gangs, along with allegations of helping the Iranians with their missile program we are not going to play nice with the Chicoms.

Here's a gang-used Type 56 (semi) from Los Angeles:

FAKE EDIT: Turns out, I have spent twenty minutes trying to locate a photo of that Black Panthers Type-56 rifle to no avail.