Has anyone tried the 165 Matrix, or 170 Berger ina 1:10?
I tried the 170 Berger in a pre 64 standard 24”, loaded with Re 26 on a cool day to see if it would work. I was getting as much as 2800 fps while still not reaching pressure signs however it was not stable enough to group.
I am awaiting the return of another rifle rebored and throated for the 170, and twisted 1:8.
The density altitude where I live when I initially tested this was some 400 ish feet which is why I tried it when I did (worst case scenario).