I use Goex Pinnacle 2F and 3F granular exclusively. It is the best powder i have used to date. Pinnacleis about equal to Pyrodex granular in power. Like JSG, Pinnacle has a very very good time to pressure and relatively flat burning curve. Because of this it is able to extract a decent velocity fromlower pressure.

Cleanup of the gun is very easy with just water and patches. Unlike 777 there is no crud ring to deal with. The breech plug comes out easily after 20 rounds are fired: another advantage over Pyrodex and 777.

According to Towsley, Goex Pinnacle pellets are problematic and are not very consistent. The extreme spread and standard deviationare both high.