I have a Marlin 922m that has less than 50 rounds through it that is failing to fire. The first 21 rounds fired just fine, then after the 3rd round in the 4th mag the trigger locked up and wouldn't fire. I noticed the front of the magazine appears to have the bluing worn off where the shell might be hitting it but other than that I can't see any damage to the magazine. Anyway after fiddling with it for a few minutes I found if I take my hand and pull back on the magazine the gun fires. I tried a second mag and same problem. I know without seeing this gun it would be hard to diagnose the problem but hoping someone may have experienced this problem with one of these guns and could recommend a fix. Thanks!