I loaded 168 gr. Sierra boatails for my buddy when he went mule deer hunting he said at 700 and something yds. It hit the ground and the guide told him if he didn’t see it he would’ve never believed it I’ll look the load up for ya it should good out of your 7mm
I use cci mag primers in every thing I shoot from 243 to 338 win mag I like the cci never had a fail or mis fire with them I’m loading 200gr. Sst Hornady with 74 grs.of imr 4350 and a magnum primer and I’m cutting holes at 100 yds.