A note on R.S.Q. powder as used in the M1909 .45 cartridge. The early Frankford Arsenal production had problems with metering Bullseye, the result being some blown-up guns. They had a special bulk powder made up by Hercules called R.S.Q. (rescue, get it?) which filled the M1909 case. In a picture of it I found, it looks very much like a spherical powder rather than flake.