hey guys, I am working a load up for a gun I built Its a 260 with a 26 inch shilen varmint barrel. I have new lapua brass, 139 grain lapua scenar bullets and h4350 powder. I have figured my oal using a hornady oal guage and bullet comparator. I am getting 2.285. Now Ive read that I need to work with seating depths before figuring powder charge. So I am going to load 3 at 2.285, 3 more at 2.28, 3 more at 2.275 and 3 at 2.27. I know I need to start with a powder charge on the low end so i am looking at 41 grains of h4350 to load in all the cartridges to start with to find the best seating depth and then work up powder charge. Would you guys please tell me if i am on the right track. Thanks.