Lee

Where did yiou get your info on "different base"?

I always presumed Shockey was the same as APP -- just screened to accept more uniform, slightly smaller granules -- also filtered to reduce dusty-type particles that would normally tag-along in every jug. If the Shockey granule color is different than APP, that's only dye spray to differenciate it.

[size=2]
Thompson Center Arms -- Triple Se7en Powder -- Buffalo Bullet Co.