So I see lots of reviews that these mags are working flawlessly, includinga video on military arms channel. Mine, however, all three of them do what is pictured. They seem to feed very slugglishly as if there is resistance to the rounds moving up through the mag body. Then they get stuck as pictured, which as you can imagine means a lot of rounds fail to chamber. (I took all three to the range they do the same exact thing in the shotgun.) I've tried a number of loads and ones that work fine in the factory mag also have this issue.
So I am wondering is there something I am missing here? I