My son and I are reloading for a Bushmaster M4. The reloads are always w/ W748 powder, Rem 7 1/2 primers, Win bulk 55 gr. FMJBT and OL is 2.245-2.248".
We have had great results w/ PMC brass and 25.4 grs. of 748.
LC 07 w/ 26.4 grs.
LC 04 w/ 25.6 grs.
LC 03 w/ 26.4 grs. All of these will shoot 1/2" groups at 50 yds.
When I reload using the RP brass the groups are terrible. We can't seem to find the right amount of powder to make these things accurate. I saw a load w/26.0 grs. listed in another post but that didn't work well. Do any of you have a load that you use w/ RP brass in a short M4 .223? Thanks, Gene
We have had great results w/ PMC brass and 25.4 grs. of 748.
LC 07 w/ 26.4 grs.
LC 04 w/ 25.6 grs.
LC 03 w/ 26.4 grs. All of these will shoot 1/2" groups at 50 yds.
When I reload using the RP brass the groups are terrible. We can't seem to find the right amount of powder to make these things accurate. I saw a load w/26.0 grs. listed in another post but that didn't work well. Do any of you have a load that you use w/ RP brass in a short M4 .223? Thanks, Gene