I was using a standard 7 rem mag load with their 162 btsp and this is a terrible bullet not to be used on any game except varmints...Shot a Mulie and Elk on one trip and that was what I was using...bullet shed its jacket inside the deer when hitting bone shot distance 300 yards deer died instantly but no BG bullet should shed its jacket . Bullet also performed poorly on a broadside shot on an medium size Bull Elk at 75 yards ...he was shot a couple of times and we found bullet fragments everywhere. The same rule does not apply to their flatbase bullets which are reliable but not those BTSP' s