I was considering getting a 20 gauge shotgun for lighter recoil compared to a 12. But I've heard that if you're not shooting really heavy loads or slugs out of the 12 than the recoil is comparable between the two. I do not plan to use the shotgun for really heavy loads, I won't be hunting big game or anything with it. Should I just get the 12 and buy "lighter" ammo? I can take moderate recoil, but I am not a big guy. I would like my wife to be able to shoot it without sending her to the hospital afterward as well. She is very small framed, 110lb, etc. It's primarily for me though. It's a Mossberg 500 as well, that is what I'm looking to buy. Probably shorter barrel length if it matters.