Full length resizing while maintaining exact control of the case neck is often desirable in one operation. The Redding Type S - Full Length Resizing/ Bushing Die accomplishes this task with the precision you would expect from Redding. Redding Competition Bullet Seating Die features a seating stem precision ground to exactly match bullet diameter. No seating die on the market is built to this level of precision. The micrometer is calibrate in .001" increments for precise seating depth and is infinitely adjustable (without clicks). The micrometer also has a setting feature that allows you to set the micrometer to your rifle or favorite seating depth. Type S Match Bushing Full Length 2 Die Set Includes: a Type S Bushing Full Length Sizing Die a Competition Seating Die How to Determine Which Bushings You Need: The easiest way to determine the proper diameter bushing, is to measure the neck diameter of several loaded or dummy cartridges with an accurate micrometer. Subtract .001"- .002" from the average neck diameter and this diameter bushing will generally size case necks to create the proper press fit for the bullet. Another method is to measure the neck thickness with a ball micrometer or Redding's Case Neck Gauge. Double the wall thickness and add this number to the bullet diameter. The result is the neck diameter of a loaded cartridge, and bushing size can be determined as above. Shell Holder Sold Separately (not included) Shell Holder #1