Pharmseller, I started at 47.5 gr. of BG and worked up in half a gr. Increments up to 50.5 gr. Then I backed off to 50.0 where velocity is 3180 fps. Accuracy was acceptable at about an inch and a quarter for three shots (repeatable), but accuracy in my Cooper was better with RL 15. I haven't tried BG in my Montana yet; waiting on the weather. Cooper is a 22" barrel.
Last edited by lastround; 02/09/16. Reason: Correction
