Wheelman,

I have absolutely ZERO experience with the IMR 4198 in 300BLK. Closest I have gotten is AA 1680, and that is about four steps faster. I use that powder for the 230gr Berger Tactical (BTJHP) with excellent results.


I can see your rationale for using a slower powder with the 245gr, I just have not loaded a bullet that heavy . . . yet. Hopefully Marcus can help.

Did you check the 300BLK "load catalogue"?

http://www.300blktalk.com/forum/viewtopic.php?f=141&t=81567