Might give Leverevolution a chance in the Grendel.
We tested a lot of powders and it and H-335 were the best with 100-120 grain bullets.
thanks Plainsman, but anything would be having a tough time beating what velocity and accuracy I am getting out of AR Comp with the 120s and 123 grain bullets...and what I am getting out of 2015 with any of the lighter bullets...
3 and 5 shots at 100 yds, is yielding about a 30 to 33 caliber sized one hole group...
The action is not real smooth in this Ruger, but those two powders are definitely turning in tight groups..
other powders not so much...I tend to do what the rifle barrel dictates what it likes...