I have a 22.250 Ruger Stainless with a 1 in 7 twist barrel... its an aftermarket Pac Nor...Shooting bullets in the 70 to 80 grain Weight Range, I thought the best powder for velocity would be the 4350 burn rate and up...
I was WRONG....
you can get in the 3300 to 3350 fps range with IMR 4064, IMR 4895, RL 15 , Varget or IMR 4320 burn rate range...
haven't tried the AccuBombs so if ya do, work up from a little lower of course
of the bullets I've tried, that are the newer types...the most accurate ones.. in no particular order..
73 gr ELD, 75 HPBT, and 80 A max or ELD, havent yet tried the 88 ELD, or the 85 and 90 RFD Nosler...nor the Sierra 77s... any one of them...
If I had to settle on one for velocity and accuracy.. it would be any one of the 68 BTHP, 73 ELD or the 80 AMax...