Seating Die Spring System

Q. What is the purpose of the spring system in the Bench Rest Seating Die? How do I set up the Bench Rest seating die with the spring system?

A. The purpose of the spring system is to allow all three critical components of the seating process to come into perfect alignment in the P-30 sliding die chamber before anything else happens. Our P-30 sliding die chambers are machined on very accurate machines with one piece reamers. Machining with a one piece reamer insures concentricity between the critical diameters! The tolerances are very tight to make certain that the case will come up over the bullet true and straight as the bullet is supported by the seating stem. The P-30 should begin to compress 1/8” to ¼” before bullet seating starts.

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