I use the Winchester defender segmented slug which is 2 3/4 long and got 5 in, then I just picked up Stars and Stripes defense buckshot 00 buck 9 pellets and it says 2 3/4 but only four can fit, when I stand them next to each other you can clearly see they are not the same height. I leave my magazine tube filled and this is now twice I have unloaded the segmented slugs and the shells buckle, anyone else experience this the first one was buckled in the middle of the shell, this time the tip of the shell was crushed/buckled at the top.