I know Barnes says start'em at .050" off, but if your magazine allows it, start at .010" and work up with your powder. When you get the velocity you want, start moving back from the lands continuing to check velocity( it should decrease as you get farther from the lands and you may have to increase your powder charge. Try to keep your velocity the same as you shorten OAL. You will find your rifles preference. It may be at .010 or even .100" or more. Usually it seems to be different for every rifle for which I have loaded. It a rare magazine that will allow loading in the .010" range, but don't dispare, usually the sweet spot is farther away from the lands and sometimes I have found two OAL's that shoot well.
Last edited by lastround; 01/03/14.
