ideal powder granulation

[Gunlaker]

In my .45-110's I use plain Goex Fg. In my paper patched loads for the CSA .45-70 I did some playing with FFFg Express as I have a lot of it.

The rifle doesn't like the FFFg as much as the FFg. Has anyone had good luck with bore diameter PP and faster powders? ( one of my other rifles, a Browning BPCR really likes the FFFg with greasers fortunately ).

Chris.