Eric, I guess if you can read the wind and know how to dance with it and round will work. I see even a 308 will work and that is way down hill from a Dasher. I sure did my share of shooting with a 308 at 1K with a sling and didn't have much trouble shooting clean at 1K and i sure didn't have 50 power scope, 20 lb. gun and a rest. F class isn't the only game in town,and if you get the good relays you look like a star if you don't you end up right above the match director,luck of the draw. Just like Perry if you were a big gun you got the targets along the tree line , wind wasn't a big issue like out in the middle. Heavy high BC. bullets do help over come missing a condition change.... jim