Shooting the Marlin 1895GS with hopped up loads is the worst kicking bastard there is, especially off the bags.
Btw, rifle weight and balance have a lot more to do with it then simply the caliber, as I said, the worst thing to shoot is that
stupid runty Marlin Guide Gun.
I firmly believe that shooting my .416RM and .458Lott have improved my over-all shooting. You learn from shooting those bigger cartridges, that recoil is over-blown, exaggerated or whatever. Just use correct form and concentrate on your target, and they are great to shoot.
The .458 Lott is really fun to shoot.
I am shooting 500gr Hornady loads that Chrony 2235fps MV, which is a mild load for the Lott; it registers about 63 ft/lbs of recoil (if I remember rightly).
Second Edit: I have to check my load data and run the numbers on the recoil calculator at www.RealGuns.com...
It's why I constantly tell me people to stay away from muzzle brakes. Anyone can learn to shoot the bigger cal's with some time and effort and you realize that all that other stuff is not necessary or helpful. Many people that are recoil shy get that way from pre-conceived notions, without even time on the shoulder.
Everybody would benefit from shooting them in my opinion.
I have had guys that were terrified to shoot my .458 etc, but almost everybody is grinning after and the standard comment is,
"Hey, that wasn't so bad!"