RCBS
RCBS Small Base Sizer .308 Win Die Set 15503
RCBS Small Base Sizer .308 Win Die Set 15503
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
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