If you can find any my usual bismuth load is 30 grains of SR7625 but be aware IMR/Hodgdon quit selling that powder close to ten years ago now . Anyway I use thirty grains of that with 1 1/4 ounces shot and an SP-10 wad . And a couple red beans as fill . I used to use a 1/8” 16 gauge card under the shot but the red beans are easier quicker and cheaper than the cards .

Very interesting. Never thought of using red beans.

Right now I have some green dot, Unique and a few other powders that could be used for shotgun.

Green Dot and Unique are fine for short tens. Green Dot especially for the light shot loads, Unique for the heavier shot loads. You won't need anything else. I will try to shoot my 01 this weekend, for the first time. I have owned her for maybe ten or fifteen years. If I survive, I will report back.

Haha.. Well I hope you and the gun survive and looking forward to your results.