Goes used to and maybe still do make a powder called Clear Shot. Clean Shot was made by American Pioneer Powder Company when they used to be called Clean Shot Powder Company before getting in a legal bind with Hodgdon's over a copy right infringement on the shape of their pellets.

I will guess it is Clear Shot Powder since it was made by Goex. I shot it only once and was not impressed wiht thestuff. Granted it was clean to shoot, but really under powered as I remember. It was a long time ago. Some people actually liked the stuff. If I want a clean powder Clean Shot was excellent but is all gone. American Pioneer, Shocky Gold, Pinnacle and I guess Black Mag 3 are the clean powders now.

It would be interesting to know what kind of powder it was and what date it was made.