So I took the M4 out for the first time yesterday and put about 120 rounds through it. Needless to say it was jamming. Id load up 5-6 shells, shoot 2 jam, shoot 1 jam, shoot another 1 jam, shoot 4 Jam, it made it through its full cycle of rounds probably 3 times? anyways, I kind of searched online and I read a few guys posting about them having to put about 200 rounds through their M4 before it didn't jam anymore. Has anybody gone through this at all? little discouraging paying this much money for a high performance gun to keep jamming. I also run into the issue where I get the loading tube filled with 5 rounds and then I go to pull the bolt handle and it doesnt stay locked back and a round is then chambered. Sorry guys, new to the shotgun world.