The guy who sent me these tips says a 9-13 inch bipod will be of great help, as the 2x4 in front of the feet of his bipod in one of the pics was a pain in the rump, so he rested the feet on the ground instead. He finished first in his class.
On that range be aware of a few specific things. The direction the wind is either coming over the mountain, or across it. Your shooting uphill, from the bottom of the ravine so to speak. There’s basically two ranges right together, upper and lower. The lower firing point faces a 500 but you easily adjust left to use the 1k. The opposite is true of the left or upper firing point. Take note of where the tree line divides the two ranges. This will act as a partial wind break further up the 1k. Don’t be fooled by the wind purely at the top of the trees way up the mountain. As the cut in the trees narrows a bit, you may well see opposite wind caused by a circular effect. Here you see the split between the 500 and the over 1k.