I bought another long barrel model 91/30 a few weeks ago. When I had my Model 44 short barrel with the non-detachable bayonet the use of a slipon butt pad really helped, and the lighter grained military ammo (147 grain bullets).
When I shot my recent model 91/30 Two weeks ago I used 180 grain commercial ammo and the steel butt plate, it really kicked hard, even with my Winter coat on. Now I will use the lighter grained army surplus ammunition and a slipon butt pad. Just be sure you clean the rifle's bore with black powder cleaner/or older GI bore cleaner to get the salts out, followed by some Hoppes #9 or your favorite gun cleaner to preserve the rifling when using military surplus ammo from overseas. :-)