I dont know for sure but I can't find any JSG or standard American pioneer powder anywhere and I've been looking for a long time. Got really hard to find a few years back but I found a bunch and snagged 12lb of it. Ran out and have had to go to 777 which is fine but JSG shot better out of my gun. Velocities are more stable with T7 but the gold was well within an acceptable level. I have to clean more often with T7.