I am with another on Unique I have had very mixed results on it and for some reason my S&W model 29 hates it even starting loads flatten primers and stick cases . Same bullet same gun shoots MAX. loads of slower powders just fine? Shooting Unique in Contender is no problem either. I first used Unique shot shell loads it was very dirty.
I have had trouble with Blue Dot in magnum pistol but love it in shot shell and .45 acp.
Over the years I have collected many powders I rarely use I even have some AL-8 on the shelf yet it was my go to powder for my S&W model 28 with 110 grain bullets . Last loadings of it was in my 44 magnum it makes a nice flask out of the cylinder gap it did the same from .357 Magnum also .
P.S. that is AL-8 in my Avatar