The light loads of Clays apparently work, but my issue with Clays is it's low density, it is hard to get a consistant load for a handgun cartridge, checking with the powder scale with it because it's so light a flake. Titegroup is denser, so is 231. Titegroup works very well with the light loads, weighs consistantly, and is not as position sensitive. Clays is a shotgun powder, and in 12 gage loads of 16 to 18 grains, it meters very well. Clays also shoots so clean that with a quality wad that won't smear, the gun looks unfired after a round of trap.