Last year I replaced the 22’” rifled barrel on my 500 with an 18 inch smooth tactical barrel to make it a home defense gun. Damn, it seems like that doubled the recoil - kicks like a mule. Good thing recoil has never bothered me.
I also put an 18 inch cylinder bore barrel on my old 500A. Best $59 I ever spent. That and an inexpensive sling swivel mag cap converted to old clunker into a very handy and reasonable riot gun.