I shoot a ar15 in 223,match 24in. 75 gr tip at 3000 fps, 26 gr of ww760, cci450 primers, and get low .2 groups.love my 22-250AI, but found a equal in a 222ai mag. Even had 40 gr up to 4500fps only once,lol, just because I could.run 68hpbt at 3400, and 50gr at 3700.all in a TC 24in bullberry barrel.