I don't see why it wouldn't shoot regular shotshells through it. To me, it would function like the other brand of shotguns that don't overbore their barrels. I can tell you that my 835 overbored barrel patterned much better than any other shotgun that I've used. I'm not a gunsmith, nor do I know alot about the science of barrels - but the results were on target for me.

Federal #5's in the 3 and 1/2" sizewould produce the most dense pattern out of all the brands of shotshells the at I tried. They would also produce thebiggest "ouch factor" as well.