Micrometer Seater useful?

[ButterBean]

Use a sharpie to make a line from the middle of seater stem to the outer edge. Calculate the travel per turn based on the threads per inch. It ain't rocket science to adjust to one or two thousands using the line you drew.

ShoNuff

 

[Willys]

Why not? I seat my bullets all to +/- .0005 without adjusting the micrometer. The ones that are out of spec are fowlers . Your press setup and annealing and bullets have to be dead nuts to make this happen tho. I used to have couple tho variance and fuss with micrometer to seat to length on each.