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RCBS

RCBS Small Base Sizer .308 Win Die Set 15503

RCBS Small Base Sizer .308 Win Die Set 15503

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The RCBS Small Base Die Set is engineered for reloaders requiring cases sized slightly below standard full-length dimensions. By compressing the case body and shoulder further, this die set ensures reliable cycling and chambering in semi-automatic Precisions, pump-action sporting equipments, and tight custom chambers.

This two-die set features a dedicated small base sizing die with an integrated expander-decapping unit alongside a projectile seating die capable of applying a roll crimp. Built in the United States with precision craftsmanship, it delivers the dependable operation needed for brass fired through rigorous actions.

Key Features

Brand RCBS
Manufacturer RCBS Precisioneered Reloading LLC
Part Number 15503
bore size .308 Winchester
Die Type Small Base Sizing & Seating
Number of Dies 2
Material Steel Blend
Product Dimensions 6 x 5 x 2 in
Package Dimensions 5.3 x 4.4 x 1.5 in
Package Weight 0.71 lb
Product Weight 0.6 lb
Country of Origin United States

Highlights

  • SMALL BASE SIZING: Sizes cases slightly smaller for dependable chambering.
  • BUILT FOR SEMI AUTOS: Works well for sporting equipments with tighter chambers.
  • TWO DIE SET: Includes small base sizer and projectile seating die.
  • SEAT AND CRIMP: Seating die applies a roll crimp during projectile seating.
  • MADE IN AMERICA FOR 80 YEARS: Products are designed in the U.S. This includes all dies, presses, mechanical powder throwers, shell holders, bushings, and more.

Compatibility

Compatible with standard 7/8"-14 threaded reloading presses and designed for reloading .308 Winchester brass for semi-automatic, lever-action, pump, and bolt-action sporting equipments with tight chambers.

What's included

  • Small Base Sizing Die with Expander-Decapping Unit
  • projectile Seating Die with Roll Crimp Function
  • Storage Case

Frequently asked questions

What is the purpose of a small base sizing die?

A small base sizer sizes the cartridge case body and shoulder slightly smaller than a standard full-length die to ensure reliable chambering in tight chambers or semi-automatic Precisions.

What does the RCBS 15503 die set include?

The set includes a small base sizing die with an expander-decapping unit and a projectile seating die that can apply a roll crimp.

Which cartridge is this die set designed for?

This set is designed specifically for reloading .308 Winchester ammunition.

Does the seating die apply a crimp?

Yes, the included seating die is designed to apply a roll crimp during the projectile seating process.

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