My rem 700 in 243 win. stays under moa with both 100 gr and 58 gr federal factory ammo. The 58 gr were v-max at close to 4000 fps according to the box. I shot both at the same target. The 100 gr was zeroed on the bull. The 58 gr hit low 9 inches and right 2 inches. Both groups were about 3/4 inch ctc. 5 shot groups. Love that gun
you may or may not have a similar experience. If your rifle doesn't like 58's try heavier, it should have similar performance on vermin.