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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.

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Exploring The Design Space   Ammunition <20mm

Started 25/7/15 by NathanielF; 170144 views.
stancrist

From: stancrist

27/7/15

autogun said...

stancrist said...

autogun said...

...bearing in mind that MGs are always likely to have longer barrels than IWs...

Two words that should never be used -- "never" and "always"   ;^)

Basic English comprehension: "always likely to have" does not mean the same as "always have" - it's describing a probability.

Yup.  But is "always likely to have" even an accurate statement?

  M1 rifle, 24" bbl; M1919 machine gun, 24" bbl

  M14 rifle, 22" bbl; M60 machine gun, 22" bbl

  M16 rifle, 20" bbl; M249 machine gun, 18" barrel

  M4 carbine, 14.5" bbl; M249 machine gun, 14.5" bbl

renatohm

From: renatohm

27/7/15

Thanks for the detailed answer.

 

In short: life is compromise, and one has to make the optimal choices based on one's needs.

And as Stan points out, mag lenght is important in ergonomics, especially for warfighters with smaller hands, and for storing, for all warfighters.

 

Being a little pickier: do you have any idea how much volume is lost when using poly cases?

Msg 6327.41 and the next 1 deleted

What I would find interesting is a 7.62 round based on the existing case for a longer ogive projectile. Either by dropping the length of the case to about 45/47 mm and perhaps using a rebated rim case like the .284 winchester. Your .224 scaled up to 7.62 is looking around .27 and 9.8ish grams. An MV of 840 mps should be practical with the larger case at least. 

H_Minus

From: H_Minus

27/7/15

stancrist said...

M1 rifle, 24" bbl; M1919 machine gun, 24" bbl

  M14 rifle, 22" bbl; M60 machine gun, 22" bbl

  M16 rifle, 20" bbl; M249 machine gun, 18" barrel

  M4 carbine, 14.5" bbl; M249 machine gun, 14.5" bbl

Others you left out:

M16 rifle, 20" bbl; M60 machine gun, 22" bbl

M4 carbine, 14.5" bbl; M240 machine gun, 24.5" bbl

M4 carbine, 14.5" bbl; M249 machine gun, 18" bbl

  • Edited 27 July 2015 19:03  by  H_Minus
Msg 6327.45 and the next 2 deleted
stancrist

From: stancrist

27/7/15

H_Minus said...

stancrist said...

 M1 rifle, 24" bbl; M1919 machine gun, 24" bbl

  M14 rifle, 22" bbl; M60 machine gun, 22" bbl

  M16 rifle, 20" bbl; M249 machine gun, 18" barrel

  M4 carbine, 14.5" bbl; M249 machine gun, 14.5" bbl

Others you left out:

M16 rifle, 20" bbl; M60 machine gun, 22" bbl

M4 carbine, 14.5" bbl; M240 machine gun, 24.5" bbl

Omitted because they're apples vs watermelons nonsense.  Need to compare weapons in the same caliber.  Otherwise, you could take such silliness to extreme, and compare 5.56mm M4 to .50 M2.

 

H_Minus said...

M4 carbine, 14.5" bbl; M249 machine gun, 18" bbl

I doubt those units which are "pure fleeted" with M4 carbines use 18" barrel M249s.  You're just arguing for the sake of arguing.

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