Nature Boy said:I’d try 5 rounds each of the ones you have in inventory.
I know this gets down to the nitty gritty of load development but the results are often surprising
I will. I also realized that I have a box of Winchester WLR primers so my test will include the following.
Federal GM210M
Federal GM215M (magnum)
CCI 200
CCI 250 (magnum)
Wolf PP
Winchester WLR