I will of course segregate the brass by head stamp. I always do. Have plenty of powders, 4350 looks like a good starting point have the RL's 19 22 etc as well. The Rifle is a pre64 Model 70 so not really worried that it can't take a +P round. First time I have seen a rifle round with a +P section.. Was wondering if for some reason the older NON +P brass would be suspect.