+1 for me.Try 14.0 grains of Accurate #9 with standard primer and 180 grain Hornady XLT for what you want swampthing. Very accurate in my 10's.
Here is my 2011 10mm I'm finishing up. Holds 21 in the mag. 3lb 8oz. I made the comp/sight block out of 1 5/8" prehardened 4140 bar stock.