After extensive testing of loads in my 22 centerfires, I still don't have a solution for a 'standard load. I have loaded 55gn RCBS cast boolits (PC'd and GC'd) in 218Bee (1:16"), 222Rem (1:14"), 223Rem (1:8"; 1in12"; 1in14") and 220 Swift (1in 12").
It seems to get any accuracy 1:12" ROT seems to be the pick, but only if the velocity is around 2,700fps (chronographed) Have any other experimenters found the same results?
223 Remington (10 shot group @100yds)