Rcbs Full Length Die Set Group D Bottleneck Cartridge .30-338 Win Mag
$99.99
The RCBS full length die set for .30-338 Win Mag is a two-die reloading setup built for consistent, SAAMI-minimum cartridge dimensions. Whether you're loading match rounds for long-range competition or precision hunting loads, this Group D bottleneck die set handles the critical work of resizing fired cases and seating bullets with repeatable accuracy. Full-length sizing brings your brass back to spec after firing, preparing it for fresh powder and projectiles.
The full-length sizer die does the heavy lifting: it resizes the case body, removes spent primers through its integral decapping unit, and opens the neck to accept your next bullet. The die features vents to prevent pressure buildup from trapped air and excess lubricant—a design detail that protects your brass from damage during the sizing stroke. Headspace is held to minimum tolerances, so the case body length stays consistent and doesn't creep during full-length sizing.
The seater die completes the pair with a built-in roll crimper. This means you seat your bullet and secure it in the same operation, eliminating a separate step and delivering uniform bullet tension across your entire batch. For reloaders working with .30-338 Win Mag, this combination gives you the precision and efficiency to produce ammunition that shoots true.
Key Features
- Two-die set: full-length sizer and seater for complete .30-338 Win Mag reloading
- Full-length sizer brings cases to SAAMI minimum dimensions for reliable feeding and safety
- Integral decapping unit removes spent primers during sizing
- Neck expansion sized to accept bullets consistently
- Vented design prevents air and lubricant pressure buildup that can damage brass
- Minimum headspace tolerances maintain case body length stability
- Seater die with integrated roll crimper seats and secures bullets in one step
Specifications
| Product Type | Full Length Reloading Die Set |
| Cartridge | .30-338 Win Mag |
| Cartridge Class | Group D Bottleneck |
| Number of Dies | 2 (Sizer and Seater) |
| Sizer Type | Full-Length Sizer with Expander-Decapping Unit |
| Seater Features | Built-in Roll Crimper |
| Manufacturer | RCBS |
Frequently Asked Questions
What's included in this RCBS die set for .30-338 Win Mag?
This is a two-die set: a full-length sizer die with an integral decapping unit, and a seater die with a built-in roll crimper. You get everything needed for basic bottleneck reloading—sizing and seating are the core operations for most rifle ammunition production.
Why does the sizer die have vents?
The vents prevent pressure from building up inside the die when air or excess sizing lubricant gets trapped. This feature protects your brass from dents and deformation during the sizing stroke, extending the life of your cases.
Does the seater die crimp the bullet?
Yes. The seater die includes an integrated roll crimper, so the bullet is both seated to the correct depth and crimped in place during the same operation. This ensures uniform bullet tension throughout your ammunition.
Will these dies work with all .30-338 Win Mag brass?
These are full-length dies that bring cases to SAAMI minimum dimensions, which is the standard specification for .30-338 Win Mag. They're designed for fired brass that needs resizing before reloading.
