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Ultimate .223/5.56 load

B4forever

Sergeant
Full Member
Minuteman
Sep 14, 2012
272
58
38
Central Oregon
Ok, say you were building a load for a 16-18” AR-15 with a 1/7 twist. Your goal is the absolute best external ballistics possible. What components would you chose (No expense spared). The load needs to fit in a magazine as well as perform in diverse environments (temp stable powder). Intended use would be mid-range gas gun matches.
 
77gr Berger otm
77gr Sierra Tipped match king

this is assuming you are talking about 223/556
 
I would look at 73ELDM over 23.5 to 24.5TAC with CCI450s. Start at 23.5 and work up.