They even made 4ga. for dangerous game, all certainly way out of my price range!
The 8ga. shell looks impressive in a shotshell lineup, makes the 10ga. look a little puny!
I would guess those 3 1/2", 10ga. slug loads would have a recoil impulse much like an big African rifle. Maybe kind of a less expensive way to 'get the feel of one', but I fear my chiropractor would be the only one to benifit of me firing it.