Both versions of 4350 will give good accuracy in the 338 but neither will ever reach top velocity potential with 200-250 grain bullets.
RL-22 is always very accurate & will give much better velocity. RL-19 will also perform well with bullets of 225 grains & less.
Norma MRP is also top drawer in all respects.
Not a fan of H-4831 in the 338 as it doesn't really separate itself from 4350.
MM
I shoot 225 TSX over 74.0 H4350 for 2900 fps.....I'd call that top velocity potential....sub MOA to boot.
