I had one back in the 70's, i hated the way the stock fit me and traded it for a pretty good drill press that i still have.

Long ago ialso had one made up on a Valmet 412 combi bbl set that i still have... It's a 12 guage on the top bbl, and 444 Marlin on the bottom bbl... It shoots pretty good even with factory ammo...

Drilling Man