Bart B, You not comparing apples to apples F-Class to BR 1000yd matches.
http://www.6mmbr.com/gunweek088.html
The above rifle is shot with rear bag same as BR so there is no reposition of the shoulder, there looking at bag technique same as the BR guy do.
If your looking at F-Class like the above rifle that I post and those rifles can shot inside 6" group @ 1000yds as you claim why isn't there a perfect X score shot at each match.
http://www.6mmbr.com/gunweek088.html
The above rifle is shot with rear bag same as BR so there is no reposition of the shoulder, there looking at bag technique same as the BR guy do.
If your looking at F-Class like the above rifle that I post and those rifles can shot inside 6" group @ 1000yds as you claim why isn't there a perfect X score shot at each match.