I have a 10 year old G-36 (not sure if the age matters) there is a small tab on top of the mag (I have 3 mags). I have learned that this is supposed to help the round start up the ramp on the barrel. The problem I had was with every hollow point I used this tab would hold the round back or cause it to jam in the barrel. I got fed up and filed the tab on one of the mags (a very small amount) but that just caused the round to not lift high enough to get in the barrel. I used about 10 different factory loads and they all did it (some worse than others). BTW I never had any issues with FMJ's. Any insite would be greatly appreciated, thanks.