Lee 90689 Quick Trim Die 300 Blackout

The Lee Quick Trim Die in 300 Blackout is a precision case trimming die designed to bring fired 300 AAC Blackout brass back to its correct, uniform length. Manufactured by Lee Precision, this single-die trimmer works in conjunction with the Lee Deluxe Quick Trim Case Trimmer to cut the case mouth and chamfer both the inside and outside of the case in one pass.

Machined from steel for long service life, the 90689 is dimensioned specifically for the 300 Blackout / 300 AAC Blackout (7.62x35mm) case. The die holds each case at the proper SAAMI trim length so you end up with consistent, square-mouthed brass that feeds reliably and seats bullets squarely. It ships as a single die; a shell holder is not included.

This is the caliber-specific die only - the Lee Deluxe Quick Trim power trimmer handle is sold separately and required for operation. It is an ideal addition for handloaders forming 300 Blackout brass from fired 5.56 cases, or anyone running high-volume 300 BLK reloads who wants to maintain trim length across every piece of brass in the batch.