Westley makes a very good point. Most grounds have a shooting boundary across which you are not allowed to cross for obvious safety reasons. Semi autos, by their very design eject cartridges under pressure and usually sideways at an angle from the cage often landing in that no go safety...
I reckon the Tolerances on the H bolt are pretty tight from the factory. Gun gets shot and the barrel gets pretty hot causing expansion. That heat, albeit it less pronounced will also be causing some expansion in the action as well. So you will then have two interlocking wedge shaped parts of...
If the internals are similar to those in a Perazzi then it sounds like it could be the H Bolt. I.e the locking bolt that slides out of the action and interlocks with the barrels. It’s a relatively easy fix for a gunsmith. I wouldn’t give up on the gun too quickly and you’ll need to get it sorted...