I'm gonna be loading some 250 grain A-frames for my 338. Because the bullets are so expensive I hate to use a lot of them to try to find the most accurate load. I'd like to load a few and make sure I get decent accuracy with them... 2 inches at 100 yards maybe. Is there a certain COL I should seat these bullets at? Again, I don't want to have to use a whole lot of bullets. Should I just seat them a certain distance off the lands? Thanks