I can tell you this much, they called the powder 230, 231, or 296. I know this how? Because they call all of that range of powders those numbers! And none of the factory powders are what is sold to reloaders! (my info in the 80's showed 11 types of 231, and in the 90's 12 types, but not any were necessarily the same as the 80's powder. I'm told a batch of powder is around 10 tons. The test each batch for burn rate and pressure properties, Then use those figures to determine how much to use in a particular loading. Then they make a sample batch and test it; and adjust it or move to a different batch.

Ivan

10 tons would make roughly 40,000,000 rounds at 3.5 grains of powder. Or 10 million at 14 grains!