RCBS X Die Full Length Sizer Die .308 Win

The RCBS X Die Full Length Sizer Die for .308 Win is a precision reloading die engineered for shooters who demand consistent case geometry across high-volume ammunition production. Built from hardened steel, this full-length sizer die resizes the cartridge body to specifications that match your firearm's chamber, a critical step in creating reliable, accurate handloaded ammunition for .308 Winchester rifles, semi-automatic platforms, and lever-action rifles.

The X Die's proprietary mandrel design eliminates the need for secondary neck sizing operations. After an initial 0.02-inch trim, cases require no additional trimming, streamlining your reloading workflow and reducing die wear. The full-length sizer body ensures uniform case diameter for reliable feeding and consistent headspace, critical factors in semi-automatic rifles where loose tolerances can cause failures. This design philosophy reduces sorting requirements and improves ammunition longevity when stored for extended periods.

This die is ideal for serious reloaders working .308 Win brass across mixed firearm platforms—whether you're producing patrol ammunition, precision rifle cartridges for long-range work, or hunting loads. The RCBS X Die serves both volume-focused operations and precision-focused shooters who need to squeeze maximum performance and consistency from their .308 Winchester cases. Compatible with standard RCBS presses and reloading equipment.

RCBS has maintained a reputation for precision reloading tooling across military, law enforcement, and civilian markets for decades. The X Die line represents their engineering commitment to reducing operator variables and improving ammunition uniformity—essential for anyone who takes reloading seriously.