The RCBS part number 31340 corresponds to the RCBS .270 WSM MatchMaster Competition Seating Die.

This premium match-grade reloading die is designed for handloaders seeking top-tier precision and consistency for the .270 Winchester Short Magnum (WSM) cartridge.

• Micrometer Adjustment: Features a micrometer thimble with thousandth-of-an-inch increments allowing you to dial in your exact bullet seating depth with precision.

• Sliding Case Guide: Centers the brass in the die before seating ensuring the bullet perfectly aligns with the case neck.

• Bullet Retention & Floating Seat Plug: The internal design keeps the bullet securely in place while floating to minimize runout (cartridge wobble).

• Match-Grade Tolerances: Built to exacting standards to shrink group sizes and maximize consistency.