Thanks Stimpy,
I looked at Trailboss, and that is my backup plan. I was hoping for something in the 1000-1250 fps range. The max for Trailboss is 12 gr giving about 930 fps. Richard Lee said that a powder a bit too fast for the weight bullet is a good choice for a reduced load. I found Blue Dot loads for a couple of bullets in the 250 gr range, with smaller case sizes than the 500. I reduced these to give a starting point of 10 gr. Larger case, less powder = less pressure. That was my thinking anyway.
I guess I would feel safer with the Trailboss,
mike