In my limited experience with is BE86 seems be an extremely clean burning powder. Way cleaner any any of the old loads we traditionally cooked up with Unique or Red Dot. Unique is a great do all powder (Red Dot is awesome in smaller volume cases but not one to push for high velocity in big cases). When I use up what I have currently I am going to start working with BE86.
"Everything in life is really simple, provided you don’t know a f—–g thing about it." - Kevin D. Williamson
Fwiw a max charge of be-86 gets 1150fps with a 158gr swc
On the ragged edge of the world I'll roam,
And the home of the wolf shall be my home - Robert Service