my rifle is a remington 700, 26 inch barrel. the round is factory 7mm rem mag, hornady 154g sst superformance doing 3150. i first wondered this when my bolt was a bit sticky to open once i fired the round. the primers are a little flat and some cratering. maybe the pictures will tell the story, i do like the round but want it to be safe for me and the rifle. i know nothing about reloading.