If starting with a new rifle, I start with a new batch of brass, pick the powder that gives the best case fill, start in the middle of the data and work up to max in half grain increments load five of each, and shoot over the chronograph. I don't even fire those at paper, I'm just looking for the charge that gives me the lowest ES and SD. Once I find that, I'll start with seating bullets kissing the lands on back to a full jump. I shoot the ones that are jumped first, as I can always seat the rest of them deeper. I've never not found a winning load using this method. And by the time it's done, I have some fire formed brass to work with.
