Hey guys I have a Seekins box mag on my custom 300 RUM. The shells slide up and out a little too easy. The top of the mag box on the front end seem too loose the rounds nose up early and anytime I haev more than 2 in the mag it casues issues. The extra spring pressure with 3,4 or 5 rounds loaded causes the rounds to push up too much and the second round gets inthe way of round above feeding. Is there any science to tightening those feed lips? I leave for Africa in less than a month and dont want to muck up my mag box.