Hi John,
I have loaded up some trial loads with 250gr NAB's and Varget based on the loads you shared in the article "Medium Mediums".
I do have a pound of R-15 which the charts do show to be slower than Varget. The charts show 2000MR to be slower than R-15 but faster than the Big Game you recommended for top velocities with 286gr bullets.
I wish we had more data at modern pressures like that you shared in the article I mentioned above. Looking at Noslers data, its probably low pressure to be safe in 100 year old Mauser sporters with 9-1/2" twist. I'm shooting a Blaser R-93 with a 1 in 14" twist, so I am confident that more modern pressures would be no problem. Particularly since the same rifle has interchangeable barrels in .338 Win Mag and .375 H&H.
