Or be really cool and have it rebored to 35 Whelen.
While perusing my new Sierra #6 loading manual there is some phenomenal velocities with this old timer with two new powders. CFE223 and 2000-MR. 26 inch test barrel and Sierra's 225 SBT shows 2900 FPS WOW that is some horsepower. Sierra's #5 manual shows only 2700 with then available powders. I turned back to the 338 WM and it shows 2800 FPS with a 225 Sierra bullet from a 25 inch barrel.
I have never used either one of those powders but they must be really dense as the loads show 70+ grains. I will have to dust off my Whelen and see if they will work for me. These loads make the Whelen a non belted magnum.
