The old (Hercules) Unique was very dirty but, it was such a good all around powder that most of us who used it just cleaned our guns and grinned over the great ammo we were loading gwith it. The new (Alliant) Unique is clean burning and I still clean my gun and chuckle over the great ammo I load with it.jason237m wrote:Unique has a reputation for being a little dirty, good all around powder though. I use Clays for my .45 loads.texasmusic wrote:I bought Unique as I read its a do-it-all pistol powder. I'm open to other options though. What makes them better than Unique?
I have loaded reduced rifle loads, shot shells, and a boxcar full of pistol ammo with it both the old and new and love it.
All powders leave combustion residue some are cleaner than others Unique, compared to say Clays is still "dirty" but nothing like in the past.