From the site above:
http://huntamerica.com/recoil_calculator
Was surprised how much the recoil numbers go exponentially.
Here's a few of my rifles with the recoil numbers and comments on how they "feel":
22LR - RE = 0, RV = 1 Nothing
270 - RE = 13, RV = 9 Ok, pleasant to shoot off bench all day.
7.5x55 - RE = 18, RV = 11 Still Ok off bench but not really pleasant for long periods.
8x57 - RE = 20, RV = 12 I'm reaching for a towel to fold-up over the butt stock!
9.3x62 - RE = 31, RV = 15 Numbers don't seem to describe this recoil.
This one will hurt you off the bench. Its broken 2 scopes and put 13 stitches over my eye! I don’t notice the recoil hunting but my shoulder will be noticeably sore that evening.
458WM - RE = 61, RV = 22 A beast!!!
First time off the bench, recoil jarred front sight loose, front swivel ripped my hand and tore up one of my sand bags. Also, had a headache for rest of the day. Shooting game, I notice maybe recoil but the muzzle jump WILL get my attention and shoulder WILL hurt afterwards!