Montana, try a hotter primer for the RL 22. I have great results with the CCI 250 in the .30-06 and 200-220 grain bullets with RL 22. I've tried all kinds of standard primers and they just didnt' cut it for my climate (Utah) or I got SD's of 50 fps or more. The hotter primers cured all that. Keep working that load. I think you have a winner. Flinch
