RCBS Full Length Die Set .300 AAC Blackout
Complete full-length reloading die set for .300 AAC Blackout bottleneck cases. Includes sizer die with expander-decapper and seater die with roll crimper for consistent, reliable ammunition reloading.
RCBS Full Length Die Set for .300 AAC Blackout
This complete die set provides everything needed to reload .300 AAC Blackout bottleneck rifle cartridges to exacting standards.
What's Included
- Full-Length Sizer Die with integrated Expander-Decapping Unit
- Seater Die with built-in Bullet Seater Plug and roll crimper
Full-Length Sizer Die
The sizer die brings your cases to SAAMI minimum cartridge dimensions for reliable feeding and chamber fit. It performs three critical functions:
- Sizes the outside of the case to proper dimensions
- De-primes spent primers
- Expands the neck to accept new bullets
The die features precision vents that prevent case damage from trapped air and excessive lubricant buildup—a detail that separates quality reloading dies from inferior alternatives.
Seater Die
The seater die seats bullets with precision while simultaneously applying a roll crimp to secure the bullet in place. This integrated approach ensures consistent bullet seating depth and reliable bullet retention through the firing cycle.
Why Full-Length Sizing Matters
Full-length sizing brings your cases to minimum tolerances, ensuring headspace remains consistent without altering case body length. This approach is ideal for semi-automatic rifles where consistent headspace is essential for reliable function.
RCBS dies are manufactured to exacting standards and backed by decades of reloading expertise.
