OK, so I have a Mossberg 20ga HD gun. It has the 18.5" barrel. I'm wondering if this little gun would have the ummph for a pig if you loaded it with buckshot or slugs? What about deer? Too small a gun? I wonder because much of Florida where I live is shotgun only. I like 20ga because the recoil is manageable for me. I do have one of the recoil absorbing stocks and considered picking up a 12ga for hunting and leaving the 20ga in the closet for now. Advice from anyone appreciated.