It is a pita but as stated above, trimming the brass to a consistent length helps. What I do is find the over-all length that I need and then line up the crimping die with whichever groove it is. I have several crimping dies so that once it's locked in, I don't bother with adjustments anymore. It takes a bit of practice to not distort the bullet when crimping it but the effort is worth it. Contrary to most rifle shooters out there, I believe in a medium-heavy crimp as it just helps with the burning of the powder with that extra resistance there.
