Starting to gather reloading supplies a little at a time since everything is getting scares. I have I custom built by a local smith in 280 Ackley that I just used out west for mule deer in SD. Loved every bit of the hunt and the riffle but at 14 lbs it was a little much to tote around all day. Came home from the trip and bought a Cooper M92 in the same cal. Back to the main question. I picked up IMR 4831SC powder and CCI large riffle primers magnum 250. Will these primers be good and safe to use ? I’m shooting 140 and 160 gr accubonds. I have bought any other components or a press yet. I’ve looked online and can’t find much on the proper application on these primers. Just don’t want to hurt myself or either riffle.