The RCBS X-Die Small Base Die Set for .308 Winchester (RCBS part no. 39262) is built around a patented design that lets you trim a bottleneck case once and never trim it again. Made by RCBS, the sizer’s specially designed mandrel carries an attached expander ball and decapping pin, and its extremely close tolerance to the die neck wall keeps the case neck from thickening as case length is pushed back during sizing. Cases sized in the X-Die grow a few thousandths of an inch initially, then stabilize below maximum length with no discernible loss of accuracy or case life.

Key Specifications

• Sized for .308 Winchester small base sizing.
• Features a patented mandrel design that eliminates repeated case trimming after the initial trim.
• Mandrel includes an attached expander ball and decapping pin.
• Close mandrel-to-die-neck-wall tolerance prevents case neck thickening over repeated sizing.
• Sized cases stabilize below maximum case length after an initial trim of .020 inch.

Frequently Asked Questions

Do I need to trim cases every reloading cycle with this die? No, the X-Die’s patented design means you trim once initially, then cases stabilize below maximum length on subsequent firings.

Is this a small base sizing die? Yes, it’s built to small base specifications, which is especially useful for reliable chambering in semi-auto and gas-gun actions.

Buy the RCBS X-Die Small Base Die Set .308 Winchester

Stop trimming cases every reloading cycle. Order this die set from our Lubbock, Texas gun shop for fast, direct shipping, and browse the rest of our reloading dies selection.