SKU: LEE90129
UPC: 734307901295
MPN: 90129
The Lee Case Length Gage and Shell Holder .284 Winchester is a precision reloading tool designed for handloaders and competitive shooters who demand consistency in case preparation. Whether you're building match-grade ammunition for long-range hunting, precision rifle competitions, or high-volume reloading operations, this two-piece system ensures every round meets SAAMI specifications before it enters your sizing die. Proper case length control is fundamental to safe, reliable ammunition—it prevents pressure spikes, maintains consistent velocities, and eliminates the need for excessive trimming between reloading cycles.
Engineered by Lee Precision, this case length gage and shell holder combination is machined from hardened steel to withstand thousands of measurement cycles without wear or drift. The shell holder securely captures your .284 Winchester brass, positioning it precisely against the gage's GO and NO-GO reference shoulders—a quick visual check that identifies cases requiring trimming before they proceed to the next stage. The tight tolerances and hardened construction ensure this tool maintains accuracy across your entire reloading session, eliminating guesswork and reducing the risk of assembling out-of-spec ammunition that could cause feeding problems or unpredictable pressure behavior.
This gage-and-holder set is essential for .284 Winchester shooters working with brass that has been fired multiple times or sourced from various manufacturers. Neck sizing, full-length sizing, and fire-forming operations all alter case length—making this inspection tool non-negotiable in a quality reloading workflow. The compact design (3.7 x 0.45 x 4.95 inches) stores easily on any reloading bench, and the straightforward go/no-go principle requires no interpretation, making it accessible to beginners while satisfying the precision demands of experienced hand-loaders.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.