Mystery Powder

[Gary Laudermilch]

I do not have first hand experience so this is just a guess. A friend has been using Vectan/Noble Sport powder and he described it as being a flake powder green in color. I believe he has been using AO in 20 ga loads. He claims it is the powder loaded in the Herters shells Cabelas has been selling. It is fairly cheap and a 1# bottle actually contains 1.1 pounds making it even cheaper. I believe he gets it from Graff & Sons.

[OH Osthaus]

I would be very reluctant to try to identify a powder by sight

And even more reluctant to try to replicate a load that way