havent much luck with those powders. i can adjust for drop if i can gat the gun to group. thats why i want to try the retumbo. ive found a couple of loads just trying get more input
+1Your poor grouping may be the bullet, not the powders. Generally speaking rifles like - or don't like - certain bullets. The powders then tune the load. I found an excellent post by Kirby Allen ( I believe) who reviewed this. My limited experience as well as discussions with others seems to confirm this.
I just went through this with a rifle. It wouldn't group 3 different bullets but when I tried the 4th one - Wow!
So, consider a bullet change instead.