I have loaded black but just rather not anymore. If I can I will find a safe nitro substitute, using powders on hand. I have about 20 different ones and should be able to find something. I was looking for a range of pressures that I should be working towards. I figure anything in the 5,500-6,500 should be fine. Due to the age I don't see the need for anything more than that.

The gun wont care if it is black or nitro. After all the gun does not know which is which. About five years ago I was using black powder in a dove field. Every time I shot you could hear people talking about it. I laughed about it being called an explosive, or that I could start a fire in the field. Sometime I think recoil has lowered a few peoples IQ.