My hunting loads pushing 210 NP bullets are right at the published maximums with IMR 4350 and RL 19. The RL 19 loads ran a few fps faster over the chronograph, and the 4350 loads were very slightly more accurate - both are good hunting loads. Many powders were tried (W760, RL15, IMR4831, etc.) but I keep coming back to IMR4350 and RL19.

I have had several .338 WM rifles and they measure different max OAL. I have found my best hunting loads seat the bullet so that it is approximately .015" to .02" off of the lands.