Re: 338 rum fps help!!
You should be able to get 3100 fps out of a 28.5" barrel with a 245 grain bullet. I have a 25.5" barrel rem 700 338 ultramag and get 3264 fps with the 225 AB as my accuracy load. The 250 AB tops out with best accuracy right at 3100 fps with this gun.
Predictions are difficult, especially when they involve the future