500grains, those are very good groups especially the 108grain one. It would be interesting if you could do a six shot group just to see what the average goup size would be. As I said before, my rifle seems to like 105 grains of IMR-4831. I fired four solids into a 1.75" group. I had a total of eitht softs and the four solids in a 3" group. I am happy with that, but the only thing that I now have to get use to is the loss of velocity. The solids are doing about 2030 and the softs are doing about 2010. If I was closer to the 2050 mark, I would be a little more happier. I might chat to Butch because it was suppose to be regulated at 110 grains like yours.

I look forward to hearing from you.

wadeb