Right now given the shortage of primers, I was going through some of my stash and found that a couple years back I had gotten some large rifle Magnum primers (CCI) back when I was looking into magnum loads. I don't have any of those larger calibers now (.50-70 doesn't really count) but it's getting so eventually I will be down to those primers eventually until the costs come down which doesn't look like it will be in the near future. So my question is, who has used magnum primers in non-magnum loads? Mostly what I load these days are .30-30, .32-40, .38-55 and my .50-70 with 7.62 x 54mm bringing up the rear. All with smokeless powder. I don't load of them very hot, closer to the minimum load than the max in every round I shoot.