Originally Posted by jwp475
Originally Posted by RinB
Check the new Speer data. New powders really give big gains in the Whelen.

https://www.speer-ammo.com/en/reloading/rifle



Power Pro Varmit

2.5 year old thread revived, but, that said..."What he said."
I did a fair bit of work with PP Varmint with the 200 TTSX in the Whelen. 2950 + FPS is achievable.
If I did that right the portion of this research on another forum starts
HERE

Blessings,
Rex