I got one I use in my AR 10, I use 45.9 gr IMR 4064 behind 168 gr Hornady bthp without cannalure seated out as far as I can (so I can just fit it in the mag). Works great for me out of a 20 in barrel. I shoot around .7 or better at 100 and it stays tight out to 500. And I shoot steel plates at 800.

"Progress isn't made by early risers. It's made by lazy men trying to find easier ways to do something."
-Robert A Heinlein

Originally Posted by 257wbymag
I never saw a fat Indian runnin round. Until I do I'll stick with a rifle