I'm getting 2510 with a 270 and 62 grains of IMR4895 from a 3.11" OAL and a 20" carbine.
From your Steyer?
My 375 Ruger data came from the latest issue of Rifleshooter magazine. None of my manuals are new enough for 375 Ruger data to be in. I did have data for the Steyer round.
I stand corrected! and that 375 Ruger data did look pretty sad and weak to me. Once again we see to NOT trust the gun rags.
With a 416 Rigby in the stable, as well as a superfast 33, I am thinking I have the bases covered for all of the big stuff going forward. The Whelen is my short, fast, lightweight for situations where that is a better fit than a 10.5LB, long barreled 338 super.