Had 2 boxes of Winchester SuperX 223 64gr in hand and put it back on the shelf, to buy RCBS 223 Small Base Two-Die Rifle Set (same price).
I have a Colt M4 (LE6920), 16" barrel with 1:7 twist. I've been shooting PMC 55gr and not happy with results. Groups (if you can call them that) are terrable. From what I've read, I need a heavier bullet for the 1:7 twist. Can anyone recommend a good bullet & weight? I'd like to develop a good general use (target/plinking/coyote, etc.) load.
I have a Colt M4 (LE6920), 16" barrel with 1:7 twist. I've been shooting PMC 55gr and not happy with results. Groups (if you can call them that) are terrable. From what I've read, I need a heavier bullet for the 1:7 twist. Can anyone recommend a good bullet & weight? I'd like to develop a good general use (target/plinking/coyote, etc.) load.

Comment