Cayugad, do you mean that you shot a 6" group @ 200 yds. or that your group was 6" low of the bull at 200 yds. Just curious as I am thinking about trying some 250 gr. Shockwaves/SST's in my Black Diamond XR. Have you tried the SST's and are the sabots any different between the Hornady's and the T/C's? I've just been out once last week with my gun and only had one weight bullet and one weight powder charge pre-measured out. The best group @ 100 yds. for me that day was 2 3/4" for 3 shots. I hope to do much better with different charges of T7ff and different weights/brands of bullets.