12 gauge magnum is friggin’ ruthless!
30-30 isn’t so bad. That is the first strong rifle I fired as a kid, it didn’t knock me out of the tree so that one was okay.
30-06 is a man’s rifle for sure, and a 300 win mag is basically like standing next to a tank firing its main gun.
Try a 20mm lahti if you ever are lucky enough.
I did, and of all the big bore hunting belted mag rifles I have hand loaded and shot, that lathi scared the livin hell out of me. Some guy had one and invited me to try it. GD! The muzzle blast was unreal say nothing about the kick.