I've got quite a few rounds of this stuff. I'm in the process of pulling the bullets and have been saving the powder. The powder looks and smells good. It is a square cut flake powder similar to com-bloc stuff. So... I was hoping I could use it in similar size cases. For example, 7.62x54. Since the heads from the Argi ammo are .311 I would use those. My question is how much of the Argi powder might I try? 80% of what was loaded in the Argi?