I have put together a 98 Mauser with Shilen 1-8 twist barrel. I am loading 162 gr. a-max bullets. This rig is to be used for long range shooting either target or varmint etc etc. Does anybody have any load data using rl-17 powder for the 7 x 57 Mauser and the heavier bullets. My usual standby IMR4350 is not grouping and I though I would try something different just to see if the groups change any.