Is there any good loads for the shotguns that have shorter chambers than 3". I have several shells loaded with #4 shot & 3 0000 buck for in-house use but would like something like the Tri-Ball for chance meeting of a black bear up close and hostile when walking in the woods. I load buck and ball right now but think a Tai-Ball type load would work better. Am talking to SWMBO about a Mossburg 935 Mag but she wants a gun gone before a new one comes in.