Originally Posted by AussieGunWriter
I have never chronographed a powder that out performed 760/H414 in this cartridge. Interesting that it is not mentioned yet. Hang on, I just did.

JW


I find those powders to be temperature sensitive.

I prefer classic.
Semper Fi
I used to run with the hare. Now I'm envious of the tortoise and I do my own stunts but rarely intentionally