Lee 90166 Case Length Gauge 280 Ackley Improved / 280 Remington / 7mm Express

The Lee 90166 Case Length Gauge is a precision 2-piece reloading tool designed to measure and trim .280 Ackley Improved, .280 Remington, and 7mm Express brass to proper SAAMI case length and square the case mouth at the same time.

Built from steel with a silver finish, the gauge combines a dedicated case length gauge with the matching Lee shell holder so a single case can be dropped in, measured, and trimmed in one quick step. Sized to .280, the gauge holds one casing at a time, making it easy to walk through a batch of range brass or fresh factory brass to bring every case back into spec before resizing.

For reloaders already running the Lee case trimming system, this gauge is fully compatible with the Lee Cutter/Lock Stud, allowing it to serve as the precision base for power trimming on a Lee case trimmer. Whether you load for a classic .280 Rem, the wildcat .280 Ackley Improved, or the 7mm Express, the Lee 90166 is the essential first step toward accurate, consistent reloads in any of the three supported .280-class cartridges.