The RCBS Neck Sizer Die Set for .243 Winchester (RCBS part no. 11402) is a complete two-die option for bolt-action shooters who want the accuracy benefit of neck-only sizing. RCBS builds this set with a Neck Sizer Die that resizes just the neck and deprimes, paired with a Seater Die that includes a built-in roll crimper to secure the bullet at the same time it’s seated. The set is intended for bottleneck cases fired and neck-sized to go back into the same rifle.

Key Specifications

• .243 Winchester chambering is this set’s intended cartridge.
• Neck Sizer Die with Expander-Decapping Unit resizes only the case neck and deprimes in one step.
• Seater Die with built-in roll crimper secures the bullet at the same time it’s seated.
• Two-die set configuration is a complete neck-sizing and seating setup, unlike a single neck-sizer-only die.
• Same-rifle brass use case is intended for bottleneck cases fired and neck-sized for the same rifle.
• Minimal working of the brass during neck-only sizing reduces case-hardening and extends brass life across more reloads.
• Tighter neck tension consistency comes from resizing only the portion of the case that grips the bullet.
• Standard 7/8-14 die thread fits any single-stage, turret, or progressive press built for standard dies.
• Case lubricant required for sizing, standard practice with steel dies on bottleneck rifle brass.

Frequently Asked Questions

How is this different from a single neck sizer die? This is a complete two-die set, including both a Neck Sizer Die and a Seater Die with a built-in roll crimper, rather than a single sizing die sold alone.

Can I use this on brass fired in a different rifle? It is intended for bottleneck cases fired out of a specific rifle and neck-sized to go back into that same rifle.

What cartridge is this set built for? This set is built specifically for .243 Winchester.

Buy the RCBS Neck Sizer Die Set, .243 Winchester

Fine-tune your bolt gun’s accuracy. Order the reloading dies from our Lubbock, Texas gun shop and get a complete neck-sizing setup in one box.