APP Automatic Processing Press - Lee
The Lee Automatic Processing Press is a revolutionary single-stage press that brings automation to brass preparation without the complexity of a progressive system. As the first press with the ability to mount dies on both top and bottom, the APP offers unprecedented automation possibilities for a single-stage press. The patented design allows you to deprime cases, swage primer pockets, resolve low base bulges, and size bullets as fast as you can operate the lever.
Why Choose the Lee APP Press
The APP features a unique frameless design where virtually all forces go directly to the die through steel linkages, rather than through the frame. This provides unparalleled visibility and hand clearance for a single-stage press. Despite its compact size, the press is surprisingly heavy and solidly built from materials specifically chosen for their application: steel lever with power grip, aluminum carriers, and nylon or acetal copolymer for low-stress components.
The revolutionary automatic case and bullet feeder system uses jaws that automatically open and grasp cases or bullets. They rapidly position the component into the operating position, then immediately open again and return for the next component. It's fascinating just to watch the jaws open and close as you cycle the empty press.
The upper carrier is balanced by a centrally mounted coil spring, which prevents the handle from falling and pinching your fingers. The symmetrical power grip makes operation with either hand equally comfortable. The upper carrier rides on two centerless ground and roller burnished columns for optimal guidance.
Applications for Brass Preparation
The APP specifically targets shooters who need to prepare large quantities of brass for subsequent operations. For those regularly processing military brass, the APP with optional primer pocket swage kit offers an indispensable solution. The system automatically removes military primer crimps as fast as you can operate the lever, without manual adjustment.
For precision rifle shooters who need to prepare hundreds of cases for match ammunition, the APP is the ideal preparation press. Depriming, sizing, and primer pocket cleaning happen at high speed while maintaining complete control over each process. The press works perfectly as a complement to your existing reloading setup.
Pistol shooters processing large volumes of range brass benefit from the automatic feeding and fast cycle time. Combined with the optional Bulge Buster Kit, you resolve low base bulges that occur in cases fired in chambers without full support. This problem commonly occurs in mixed pistol range brass.
The APP works excellently with the optional Lee Breech Lock Bullet Sizer Kit for nose-first bullet sizing, ideal for powder coated bullets. Sized bullets automatically drop into an attached container for rapid processing.
Practical Use and Setup
The APP is delivered with a complete automation package that is immediately operational. Included are all feed tubes, tube supports, risers, case slider, and even the .22 caliber bullet feed jaws. The three most popular X-PRESS shell holders (2, 4, and 19) are included, which together cover more than 60 different cartridges.
Mounting is simple on any workbench without underswing. The press accepts standard 7/8-14 dies from any manufacturer via the Breech Lock bushing system. Standard press shell holders from most manufacturers are also compatible. The universal shell holder quick-change adapter enables fast switching.
The stroke of over 7.5 cm makes it possible to process even larger belted magnum cartridges. Maximum case length is 30-06 or 2.494 inches. For optimal results, it's important to make complete strokes with the handle to ensure correct centering and reliable feeding.
Spent primers are 100% captured in a bottle with screw cap, ensuring a clean workspace without dirty, lead-contaminated primers around your press.
Specifications
Type: Single-stage processing press with automation
Construction: Frameless design, aluminum carriers, steel lever
Stroke: Approximately 7.5 cm (3+ inches)
Die Connection: Breech Lock bushings for 7/8"x14 dies (all manufacturers)
Shell Holders: Compatible with standard shell holders, includes X-PRESS shell holders 2, 4, and 19
Maximum Case Length: 30-06 or 2.494" for case processing
Automation Package: Includes case and bullet feeder with automatic jaws
Feed Tubes: 4 pieces included, suitable for most bullet and case diameters
Bullet Jaws: Includes .22 caliber jaws
Primer Collection: 100% collection in bottle with screw cap
Handle: Steel lever with symmetrical power grip
Balancing: Central coil spring prevents finger pinching
Mounting: Easy mounting on any workbench without underswing
Included: 1x Spline drive Breech Lock bushing, universal shell holder quick-change adapter
Expansion Options: APP Bulge Buster Kit, APP Primer Pocket Swage Kit, Breech Lock Bullet Sizer Kit, APP Prime Kit
Weight: Heavy for compact dimensions (±2 kg)
Dimensions: 32.8 x 16.8 x 12.9 cm (packaging)
Brand: Lee Precision
Article Number: 90933
Photo note: Lee APP is shown mounted to Lee Reloading Stand (can be ordered separately).
