Lee Collet Neck Sizing Rifle Die For 223 Remington
Features:

• Collet Neck Sizing Rifle Die
• 223 REM

A collet squeezes the case neck against a precision mandrel for perfect bullet fit with minimum run-out. Maximum accuracy is usually achieved by seating the bullet out far enough to touch or almost touch the rifling. This provides the shot start pressure normally supplied by the crimp.