I was at the range today, to put some cor-bon through my glock 9mm. I have put some through before, but never loaded with a full mag, had put some on top of fmj. Anyways when I loaded the mag full with cor-bon, on the second to last shot, it would fire fine like always, but when it went to eject and strip the last round up, instead the last round ejected with the empty casing. This only happened when the mag was loaded with cor-bon. If I put one fmj in 1st, and then loaded the rest of the mag with the cor-bon, it did not have this problem. Has anyone else experienced this before? What might be the problem, is it that the corbon is shorter?