I have the gun. It is not chambered for the 2 3/4 shell. only 3".Recently received the Hatsan MPA, bought 50 rounds of target load and 5 buckshot (both 2 3/4"). All rounds failed to eject. I know this gun can be picky and cycle 3" better but any idea what's causing this? thanks!
Here is the video of the gun jamming.
Hatsan Mpa Semi-auto shotgun failure to eject - YouTube