I've used Ramshot Hunter. 59 grs. with Hornady's 120 gr. SP shot .7-.8 for three at 100 yds. But the same charge with the 120 gr. Nosler BT didn't do any where near as good. Didn't try different charges, but, as a rule, Ramshot's Hunter usually shoot quite well. Some rifles might handle as much as 61 grs. with a 120 gr. bullet. E