Short Action Customs - 7 PRC Modular Sizing Dies

2026-02-15T17:22:30-07:00

Vendor: Short Action Customs
Type: Reloading
Price: 484.99

The new Modular Sizing Dies are used for a family of cartridges. The Modular Sizing Die 7 PRC works with rifles chambered with any reamer. Your caliber selection will dictate which decapping pin you receive with your die.

NOTE: THIS DIE IS FOR 7 PRC ONLY! WILL NOT WORK WITH 6.5 / 300 PRC

Modular Sizing die 7 PRC works with any spec’d reamer. (If shooting a factory produced rifle you have SAAMI specs. If shooting a custom rifle check with your gunsmith on what reamer was used to chamber your rifle).

The Modular sizes more at the base and less at the shoulder compared to traditional resizing dies

Made from 17-4 H1150 Stainless steel that is then nitrided to obtain the utmost lubricity

Made in the USA

“The Modular Sizing Die” has a unique design where the cartridge’s body geometry is sized by the die body, the cartridge’s shoulder and neck geometry are sized by a “Neck / Shoulder Bushing”. This allows one die body to be used for the whole cartridge family.

Furthermore, the Modular Sizing Dies are precision machined with the main focus of properly sizing your fired brass. Our resizing dies will size the base of the cartridge slightly more than the shoulder.

After studying precision CNC machines and tooling, we designed the Modular Sizing Die to utilize a series of shallow tapers, not threads to properly center and secure the Solid Decapping Pin. Our tapered geometry offers unparalleled concentricity and repeatability.

Last but not least, we designed the cartridge sizing geometry to size a little more at the base and a little less at the shoulder when compared to most resizing dies on the market. In properly sized rifle chambers, this helps eliminate extraction issues of fired brass. Our shoulder sizing geometry and helps minimize case runout and over working of the brass by not sizing the shoulder too much.