MIL-SPEC Accuracy Requirements for Small Arms Ammunition

[Pawnee Bill]

Does anyone know what the accuracy requirements according to the MIL-SPEC are for the current issue small arms ammunition?

 

[243winxb]

Find it here https://discover.dtic.mil/

Specification Development
Accuracy requirement based around
10 round shot groups
7.0 in extreme spread max avg @ 600 yds
(1st Production Lot)
3.5 in extreme spread max avg @ 300 yds
(after 1st Production Lot)
Velocity standard deviation 15 fps maximum
A lower value equates to less vertical extreme
spread at long range.

7.62 long range ammo.

 

[kindabitey]

I've only seen what is "acceptable" from FN for the M4, which is 4" @ 100m. Could have been 50m.

 

[243winxb]

Black Hill loads some for the military. http://www.black-hills.com/

 

[Pawnee Bill]

Anyone happen to know what the spec is for the new M855A-1, 556 NATO round?

 

[300_whisper]

At PMI we were told 3 MOA accuracy is acceptable. Not sure what the contractor spec is though.

 

[JEFFPPC]

Many ears ago I acquired some 5.56 US issued ammo.. It was when there were a lot of local 100 yd offhand shoots. Out of my Rem 700 BDL Varminter that I bedded and added a 2 oz trigger to they shot 2 to 2.5 inches. I found that by pulling the bullets and inserting a 50 or 55 gr Sierra Blitz it reduced those group to .5 or a bit less. Maybe they need to require better bullets to get better performance

 

[MislMan]

Note, this is the ammo specification. Ammo is fired from a manufacturers' test barrel under the best conditions within their test environment. This does not appear to be a performance spec for the rifle system.

 

[243winxb]

new M855A-1, 556 NATO round?

95 percent of the rounds will hit within an 8 x 8-inch target at 600 meters.

https://www.military.com/equipment/m855a1-enhanced-performance-round