I have my first 6BR, New 1:8 Shilen on a Howa action, Timney trigger and bedded stock. I am trying to get an accurate groundhog load worked up and need advice. My results are erratic as I try new bullets and powders. Should I start with say 30.0 of Varget and then try various seating depths until I get a good result, and then proceed to vary the powder charge to try to improve that? I will use any good bullet but would like to get a 87 VMax to fly right. I have a Burris set at 32x and am dry firing off a heavy bench between shots to watch my follow thru. My hold is much better than my average 1 MOA group.