Re: Extreme Spread?
I ran some numbers on quickload and it looks like H4831or H4831SC will work better than IMR 4831.
You get a 95-100% fill rate and good burn characteristics.
H4831SC would be my first choice to try, that way you can stick to the extreme powders.
Just work up a load that is in the 2900-3000fps range and work around that.
Retumbo and H1000 is a bit slow for the 180gr.
VVN560 is also a very good powder for the 180gr.
H4350 may also work but you will only get about a 88-90% fill rate.
Last edited by RockZ; 09-21-2010 at 03:33 PM..