I have shot a lot of belted magnums, but for me, the most painful gun I ever shot was a single barreled NEF 12 gauge with 3 “ shells. I bought it for my son, got rid of it quick.
Just in case you ever regret getting rid of it, I have a 12 Ga full rifled Pardner 2 that will bloody your nose if you aren't careful! I scoped it once, and recieved "magnum eyebrow" for my efforts.
On the lighter side, if you leave the 3" Rem Copper Solids in the box, and use either Lightfield Hybreds, or my Lyman 525Gr handloaded slugs, it balentines the rounds at 50 yds. Killed one deer with it and wondered who got the worst of it.
Remember.... they're full time deer......we're part time hunters!
I have shot everything. Well just about. and for me the worst I have shot was a 30-378 weatherby without a brake. It's not always the "big bore" but the combo of over bore and powder amount that make some guns HORRIBLE to shoot.
To Crush your enemys, See them driven before you, and hear the lamentation of there women.