Re: What Primers do you use in your 7WSM, LR or LR MAG
From 6mmbr.com
<div class="ubbcode-block"><div class="ubbcode-header">Quote:</div><div class="ubbcode-body">While the WSM case requires a Magnum-sized boltface, it uses a conventional, large rifle-sized primer. (Magnum LR primers offer more spark but they are the same size.) We've heard good results with CCI, Federal, Remington, and Wolf (Russian) large rifle primers--both regular and magnum versions. You may want to experiment with both regular and magnum (extra energy) to see what works best with your choice of powders. Normally CCI is a top choice for shooters running very hot loads. This is because CCIs have harder cups than other brands and can stand higher pressure loads before they crater. This is not a major concern with the 7mm WSM, however. The case has abundant capacity, so you don't have to drive the case at max pressures in order to get 175-180gr bullets to 2950 to 3050 fps--the most accurate velocity range.</div></div>