I should probably just pick up some ammo and shoot it. I am probably overthinking the amount of recoil.
My .308 rifle bothered me with it's excessive muzzle jump. A friend suggested sending it to MagnaPort in Michigan. The craftsmen there cut four slots near the muzzle without marring the bluing at all. Result is no more muzzle jump and reduced recoil. Lastly I installed a Limb Saver butt pad to transform this rifle into a joy to shoot.
Don't Mosins kick as much or more than .30-06? At least I hear the short ones do.
As an owner of several Garands, Garand only ammo isn't reduced power loads, its Garand specific because of the narrow band of powders that can be used. * * *