RCBS Neck Expander Die .321

RCBS® Neck Expander Dies are specifically designed to flare the inside dimension of only the case neck to ensure perfect alignment of the bullet during seating.

• Expands the inside of the case neck of your brass casings
• Ensures perfect alignment of the bullet during seating
• Flares the inside dimension of the case neck while leaving the rest of the case body untouched
• Made with high-quality materials and precision manufacturing techniques
• Provides consistent results over time