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Military Guns and Ammunition

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This is intended for people interested in the subject of military guns and their ammunition, with emphasis on automatic weapons, particularly in larger calibres (12.7+mm).

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NGSW evaluation update   Small Arms <20mm

Started 31-Jul by autogun; 9614 views.
roguetechie

From: roguetechie

20-Aug

Yeah, you're not stuffing a 338 Nm Into a 240.

And also, I knew you were referring to Norma mag the whole time and all of my points still stand. It's marginally less bad than LM but that's nowhere near the same as good. 

There are frankly lots of things that Norma mag can't do that bmg can that being more accurate to and beyond 1 kilometer doesn't come near making up for.

Now, onto the subject of buffer tubes. Let's take your rattler pdw with a stock attachment interface rail at the back as a baseline. You're giving up easy an inch to the back face of the attachment rail, then another inch or even a bit more for a hinge and lockup plate that may or may not actually lock the stock up well (and just how long is the right repeatable lockup going to last before your stock starts getting wiggly? Hint: not long, many if not most folder mechanisms are some degree of crappy) so you're sitting at 2" minimum beyond the rear wall of the lower.

There exists on the market one $59 retrofit micro buffer setup that uses standard bcg's and everything and gives you the equivalent 2" or so protrusion beyond rear receiver wall.

There also exists any number of retrofit systems some of which have very tiny integral telescopic 6 position telescopic stocks that fully collapsed range from about 4 inches of protrusion TOTAL including spring loaded telescopic pdw stock that can spring deploy to your desired adjustment point with a single push button action to about the same as a normal m4 stock which is something like 8 inches and changed fully collapsed.

These options are cheaper simpler and many of them require nothing but the new buffer system shorty tube and etc while using standard carriers and everything else.

So my first question is, does a whole 2" shorter warrant $1500 instead of $200-$500?

My second question is, does the extra inch and a half difference between an 11" 300 blk and a 12.5" 5.56 barrel Actually DO something meaningful?

The reason these questions are important is because what you're advocating for is loaded with serious pitfalls like accidentally blowing up guns, hoping that this time Sig isn't having paying customers serve as product development testers (see the origination of Sig's bufferless system two product names and a mark 1 and Mark 2 version of the original version before they renamed tge product line and went to the current version)

Bottom line is that you're pushing for the most technically risky approach that also involves REDESIGNING 300 BLK so it can't blow up 5.56 guns and truly MASSIVE cash outlays between the conversion kits ammo tools new armorer training and beyond.

Even worse than that though, you're doing it based around a round that's going to be actively worse at and beyond 300 meters

ALL over saving between 2 and 5 inches in stowed weapon length.

It's just so far beyond not worth it, the mind boggles.

Farmplinker

From: Farmplinker

20-Aug

Embrace the concept of carrying a slung M4 with the stock in the 2nd position. That way, if you have to shoot quickly, just unsling (if you don't have it hanging down front on a single point sling)unsafe, put to shoulder, and fire! Saves time over the additional step of unfolding your stock.

Red7272

From: Red7272

20-Aug

There is no point to a new gun unless there is a new round (apart from the 6.8 which is a going to see limited use). This also applies to the .338 NM. the .50 BMG needs a 25 kg gun and a polymer case, not a .338 that can't do 90% of the jobs and 240 does. . With a projectile less than 50 years old in design they overmatch the .338 in every category. 

roguetechie

From: roguetechie

20-Aug

Yes. We're very much on the same page.

We already know sub 25kg 50 bmg belt feds are possible too since there were guns built in the mid 40's by one guy that ranged between 31 and 48 pounds with cyclic rates up to over 1000 rpm and as low as 350 rpm.

Assuming that you're modernizing the ammunition anyway, there are several things you could do to help compensate for the idiosyncrasies of such soft recoil action designs.

Ultimately and for many other reasons beyond this, I think that this is the right course of action and should be pursued.

graylion

From: graylion

21-Aug

I think we need to add 30x113 into the conversation here, which seems to be in discussion for replacing .50 for vehicle mounted roles.

Red7272

From: Red7272

21-Aug

graylion said:

I think we need to add 30x113 into the conversation here, which seems to be in discussion for replacing .50 for vehicle mounted roles.

Only the most delusional see it as a replacement for anything. It's 5 times as powerful and no amount of marketing will make it suitable for a pintle mount.  Scaling the .338 LMG up to .50 BMG is a much more practical solution for infantry portable and pintle mounted weapons. 

roguetechie

From: roguetechie

21-Aug

That and there's the whole fact that you'd need to anchor the pintle into the ground with a few thousand pounds of ballast and a generator to power the gun and feed system.

In reply toRe: msg 62
Mr. T (MrT4)

From: Mr. T (MrT4)

21-Aug

Wonder what the barrel length is on the .338 NM MG 

I once had an unpleasant experience of testing a sniper rifle prototype with a short 14 or 16 in ( not quite sure as it was 6-7y ago) barrel for use as handy Anti VBIED rifle in .338 LM and that thing was mean  , extremely unpleasant to shot, you felt the muzzle blast trough your facial bones and teeth. So much so that muzzle brake was quickly discarded  . 

Farmplinker

From: Farmplinker

21-Aug

I keep telling my buddy with a .338 LM he needs a suppressor.

QuintusO

From: QuintusO

21-Aug

Mr. T (MrT4) said:

Wonder what the barrel length is on the .338 NM MG 

24 inches.

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