I have heard of some great reviews but there is not alot of data out there. Will it increase velocity in these calibers? If so show me some load data. Please and thank you
I have some minimal work with the .260 and R-17. I'll get to data when I get home, but can't say I was too impressed with it.
N-560 & R-19 are the two go fast powders for me so far.
