Among the other stuff I got when we cleared out my folks and moved them to an assisted living place is a big keg of Alcan #7. I've been shooting up another keg he had of Alcan #5 which I have been using Red Dot data for and it's been OK, pretty good actually in .38 Special and .45 Colt.
This Alcan 7 has more loading data in my old manuals than did the Alcan 5. Seemed like good stuff in magnum hand gun loads, seems to burn slower than Unique but faster than Blue Dot.
I loaded up some today using some gas checked 158 grain SWCs and 9 grains of this Alcan #7 in a Blackhawk I have that has given mediocre accuracy with most things I've tried in it. Today's groupings were the best I've ever gotten from it. This is the first time using this powder. Fortunately, I have a lot of it, but when it's gone, it's gone. Anyone used Alcan #7 before? It was apparently designed for heavy field loads in the 12 gauge, but I have a Lyman shotgun manual from he '70s and there is very little data in it for the Alcan powders.