Good powder for 223- AR-15 specific.

[m14rick]

748 with WSR primers in GI brass w/ 55grain FMJ, although I want to try the 77 grain match projectiles. I use my AR15s for defence, animal control, and blasting.

 

[RecoilRob]

Agree that H-335 (which is almost identical to BLC-2) works great in the .223 and .308.

Also have used RL-7 with good results.(20grs in surplus brass with 55 FMJBT) It is a bit quicker than H-335 but gives good velocity out of short barrels with a bit less muzzle flash.

 

[rbernie]

RE15 for the heavy stuff, RE10 (when I can find it) or RE15 for the lighter stuff.