Lots of good information here. I recently purchased a Ruger Hawkeye Guide gun in 338 win mag. It has a 1:9.3 twist. Has any body shot this rifle or have experience with it. I'm not looking for speed or long range. I want a 200 yd Thors Hammer. With that twist I would say 250s ought to be ok. Next would be bullet choice. I don't have any experience with the 338 or heavy bullets.