12-23-2019, 07:20 PM
I noticed the 6.5 Grendel/7.62x39 mag is a little hard to load because the feed lips end at the shoulder of the case. I wonder with five rounds in the mag the bullet nose tends to push downwards when the bolt head starts pushing the cartridge forward. Any slop in the mag body fitment might aggravate this issue. There seems to be enough case taper for the top round to have more tendency for the bullet nose to push down over being pushed up or straight ahead. This issue is similar with AR-15 mag feed lips that don’t release the cartridge to start rising and the edge of the cartridge case mouth snags on the front of the mag body. To remedy this situation you can change the feed lips a little to let the cartridge have more room to raise or lower the front edge of the mag body.