To win in 1000 yard bench rest in heavy gun you have to be able to put 10 shots in the 4 to 5 inch range on a fairly consistent basis. If you can't do that in 4 to 5 matches out on 10 you are not going to do well in the season aggs. Most of the guns are 300 WSM and 6 Dashers. I have a 338 Lapua IMP. that i hunt with and it is 45 lbs and braked and it still pushes you around. The 338 bullets are not good enough to compete at 1000 yards. The 6.5-284 that was a dominate caliber in the 17 pound class five years ago all but disappeared. They are too fussy to get to shoot small enough. The WSM and Dasher totally dominate now.