Re: A Benchrest shooter might know........
Just buy a Neck Turner, I bought a 21st Century kit on a wim, I already had a tubing micrometer, and Imperial sizing wax, with in 30 minutes I was turning necks on Win 7-08 brass resized to 260, I had 20 pieces that showed more than .0015 difference in neck thickness, I turned all the cases to .0135, loaded them and my seated bullets runout went to zero, also surprising my was my ES/SD, SD of 1, and ES of 5, and two groups of 1/2 inch at 200, so anybody who says it's a waste of time I beg to differ, but it is a lot of work, and maybe so much that I don't think I'll be doing it on every case, but like all tools it's better have and not need than need and not have.