Re: How do you determine "at the lands" by your method?
These are obviously some of the finer points in handloading and I know I've heard plenty of people say they do it all, some for confidence, some say it all shows improvements.
I can't help but wonder what the difference would be if you took normal cafefully prepped brass, turned and such, no detail missed, then seated bullets that never went through any sorting inspection process and compared them to same load with bullets that had been through every uniforming procedure mentioned, even spun on the Verne Juenke ICC...
If there was an advantage of increased precision to doing all the work on bullets, one should see a the largest improvement by doing everything he could to one batch of loads and nothing to the other, although you would have to isolate the advantage contributed by each step if you wanted to eliminate any that might prove un-useful.
Has anyone done this sort of all or nothing comparison before? If so, what did you find and how confident are you other variables were not influencing the testing?