32 ga Iver Johnson ejecting issue

[nickel plate]

It's a single shot that I received from an inheritance many years ago. It was built during the "paper" shotgun shell era and came with a box of same. It shot and ejected perfectly with paper but since they were no longer available, I located and bought a case of 32 ga plastic cartridge Fiocchi shells. The IJ still shoots well but will not eject the spent plastic cartridge. I think the expanded top crimp wedges a lot tighter in the chamber that the older paper crimps thus the problem. Not sure but the brass base-paper vs. plastic also may the issue but I have no paper shells left to compare.
Can the barrel chamber be bored out a little further in depth to compensate for the plastic crimp wedge or is the old owl gun now a wall hanger?
Anyone know of a gun smith with a 32 ga boring tool? It appears to me that there is enough breech barrel steel to attempt this. Not a Damascus twist barrel.

[Dattebayo]

It's a single shot that I received from an inheritance many years ago. It was built during the "paper" shotgun shell era and came with a box of same. It shot and ejected perfectly with paper but since they were no longer available, I located and bought a case of 32 ga plastic cartridge Fiocchi shells. The IJ still shoots well but will not eject the spent plastic cartridge. I think the expanded top crimp wedges a lot tighter in the chamber that the older paper crimps thus the problem. Not sure but the brass base-paper vs. plastic also may the issue but I have no paper shells left to compare.
Can the barrel chamber be bored out a little further in depth to compensate for the plastic crimp wedge or is the old owl gun now a wall hanger?
Anyone know of a gun smith with a 32 ga boring tool? It appears to me that there is enough breech barrel steel to attempt this. Not a Damascus twist barrel.

Possibly a better solution is to load paper shells yourself? I would hate to modify a gun that is an heirloom.

Paper hulls can be readily available at ballisticproducts.com