FORSTER Bench Rest® Ultra Micrometer Seater Die 300 Winchester Magnum #U00100

The Ultra Micrometer Seater Die non-crimp type (except for the 30-30) holds the bullet and the case in perfect alignment while the bullet is press-fit inserted.

A convenient micrometer sets the bullet seating depth to your specifications. After seating the bullet near the desired depth and measuring, simply adjust the micrometer stem up or down to the desired depth, and the cartridge will have exactly the necessary length.

Includes all the popular straight seating features of the original Bench Rest section die, plus an ultra-precise micrometer for adjusting bullet seating depth.

The micrometer allows fine adjustment in both directions - easily adjustable to .0005" 
The graduations in .001" increments are clearly marked.
Eliminates much of the trial and error previously associated with accurate cartridge seating.
The bright white markings make the micrometer easy to read.