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It would work on the principle that recoil starts from ignition, from when the gases and the bullet start moving forward in the barrel (i.e. not just on venting at the muzzle). The gases being...

Add to this internal muzzle brakes, contained within the suppressor so you don't get the bother of the blast. gundoc may be able to comment.

Sounds true, but when out hunting who fires 20-50 full bore centrefire rounds? Each butt strike makes the next one a bit more sore, a real physical component that adrenaline can't totally cancel out.

Suppose
... plenty power for the distance
... heavier .30 projectiles with less deflection
... rough "agricultural" / communist block reputation so suppliers will never get away with too much...

Prone, your body does not recoil back with the rifle, the butt just digs in. A tiny but upright shooter has it easier.

Wear a carrier harness / vest, any stiff webbing running over your shoulder spreads recoil nicely.