How often should the magazine be taken apart and cleaned? I have 10 2 I put less then 500 rounds through, last weekend while shooting it the rotating drum within the magazine stuck after only shooting 3 of the 10 rounds in the magazine. The rotating part would not push up the next round to the top of the magazine. Not sure if something got stuck, after I pushed it with my pocket knife it pushed the next round up and continued firing without any issues. I was shooting a lot of Remington thunderbolts, I understand and also noticed are very dirty ammo. Does the magazine need to be taken apart and cleaned frequently?