Federal Bulk 223 loose packaged ammo in 55 gn in ARs
- Thread starter Shootist
- Start date
My AR (Colt AR15-A2 HBAR) does NOT like that ammo. It has a 1:7 twist, so I suspect it's overspinning the bullet (spinning the bullet too fast for its weight). Accuracy at 100 yds is 3-4 MOA.
When I handload 62 and 68 gr bullets, the groups shrink to 1-1.5 MOA.
The ammo doesn't seem to be any dirtier than other ammo, and it cycles my AR just fine. It's decent ammo to get your AR cycling, and relatively cheap, too.
When I handload 62 and 68 gr bullets, the groups shrink to 1-1.5 MOA.
The ammo doesn't seem to be any dirtier than other ammo, and it cycles my AR just fine. It's decent ammo to get your AR cycling, and relatively cheap, too.
Its bulk ammo, in a SERVICE rifle. 3-4 MOA isn't horrendous, its combat effective which is what the rifle was designed for. Naturally handloads should/would group tighter.
TDC
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DaveMachine
CGN Ultra frequent flyer
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Red box AE has grouped like that for me in both AR15s I've owned. The black box bulk stuff shoots significantly better out of my DD 1:7 upper - around 1.5MOA.
Bullet weight is the big difference, amigo.
Remember, the M193 round (55 gr) was designed for the earliest M-16's, which I believe had a 1-12 twist.
I'm loading the handload (62 gr) as close as I can get to C77/M855 spec.
You're quite right about the heaviest bullet (68 gr) that I've tried in mine being more accurate.
I shoot the bulk stuff through my 1/7 and 1/9 with no noticeable difference in performance. Keep in mind 1/9 AR's have been in service a long time and running 55gr ammo. the 62 was adopted for the M249.
You can't run a service rifle with bulk ammo and not take into account the shooter, the trigger, the sighting system, and any accuracy enhancing modifications on conjunction with the ammo.
Sh*t ingredients in means sh*t product coming out. Sub optimal performance from any or all of those factors will stack up to poor performance.
TDC
