Agree with gunner. My 24/47 shoots 1.5-2 MOA with the Prvi 196 grain ammo.
My 24/47 likes the heavy bullets, as do most of the military mausers I own.
Experiment, check the action bolts to make sure everything is snug, and make sure it is clean.
What ammo were you shooting?
Don't give up on her yet. Many of those 24/47's have brand new barrels on them.