Aguila ammo

[wildworrior]

I have a CMMG MK4 223 with a 1 in 9 twist on a 16" SS barrel. I purchased 500 rounds of Aguila 55gr FMJs through Cope's Distributing. After shooting at the 100 yard range I noticed the bullets are all over the paper. It was 65 degrees sunny and little to no wind. I was wondering if anyone has had problems with Aguila or is it not a good weight for the gun.

 

[Aguila Blanca]

55-grain is the weight of the original M16 round that I carried in Vietnam. 1:9 is a faster twist than the original M16(A0) that I carried, but my AR-15 is 1:9 and it seems to shoot 55-grain ammo fine at least out to 200 yards. But I have not tried Aguila brand. If there's a problem I'd say it's something other than the bullet weight.