Shot the new .416 Rigby this weekend. I ended up going with Ray Atkinson's advice and opting for the Ruger as opposed to rebuilding a CZ. I was very impressed. Off the bench MOA with a 1-4x scope! Heaven knows what I could get out of it with a 3-9x considering how small the target looks on 4x at 100yds. Only thing I changed on the rifle was the recoil pad. This was with Federal's in 410gr Woodleighs.

Try 57 grs of XMP5744 with cast bullets( or the 400gr Hornadys) for practice loads! 100 grs of RL-22 with 410 woodleighs for serious stuff-Rob