So I think what you're looking for in this test, the way you did it, is to look for groups which had the smallest spread in velocity within that group and a pair of groups that exhibited the smallest difference in velocity?

Sorry for picking your brain. But this is very interesting and I'm sure a lot of other members are checking it out too. In all my years of reloading I was content with my method of load development. Its just been in the past month or so that I've been doing a ton of research on different techniques. What I was doing in the past was good for 100-200 yards because that's all I ever shot. Now that I want to get into long range shooting my method, to put it mildly, 'sucked"! Some rifles I got lucky with, others, not so lucky.