Folks, need your help on this one. I'm having a chambering jam/hang-up on this 590A1 only when using live ammo 12G 2 3/4. In a box of 25 ammo, it will happen 2 or 3 times. But when I try to replicate it with snap caps loading them on the magtube, it doesn't have a hang-up. I even tried to cycle and chamber even pointing the muffle downwards and it feeds and eject smoothly. This happens only when I load the ammo in the ejection port and rack the slide forward.