I’ve had a 722 in 222 for18 years.... it’s the easiest gun to load for I have. I mostly use ram shot exterminator and aa2230 now I have used 2015, rl7,rl10x, IMR 4198 with equal success. I mostly load 40 gr vmax or 40 get Sierra hp.
.....if I go on a pd trip it is one gun I will always take ......... it is one gun I will never sell..... I use published loads by accurate/ ram shot and Hodgdon. From their websites...