Drew;
Thanks for that info. It was a long time ago I read they were identical powders, so prior to the re-formulations. I never had any Infallible but have used a good bit of Unique. In the old days with card & filler wads if one tried to load it light as in even a 3-1 1/8 12ga load it required considerable wad pressure to ensure good combustion but was excellent with 1Ľ oz loads or in the 16 or 20 gauges. With the thinner discs Infallible may well have been better in this regard as I see it recommended in loads as light as 1 oz in 12 gauge in old literature which Unique generally was not.


Miller/TN
I Didn't Say Everything I Said, Yogi Berra