The Lyman 450 Lube Sizer Pressure Screw (LY-LSPS) is a precision-engineered, original equipment manufacturer (OEM) replacement component designed for cast-bullet reloaders. This mechanical threaded rod is specifically built to restore the functionality of legacy Lyman bullet lubricating and sizing presses. Operating as a purely manual component, the pressure screw threads directly into the top of the Lubrisizer main body. When rotated by the user, it drives the internal plunger assembly downward into the lubricant reservoir, pressurizing the bullet lube and forcing it through the sizing die ports into the grease grooves of cast lead bullets. This replacement part allows handloaders to maintain their existing equipment without the need to purchase an entirely new sizing press when original threads become worn or stripped.

Key Features of the Lyman LY-LSPS:

• Direct OEM Replacement: Engineered by Lyman to match the exact thread pitch and specifications required for legacy Lyman bullet sizers.
• Broad Series Compatibility: Fits the Lyman 450 Lubrisizer, and is fully compatible with the wider Lyman 45 and Lyman 4500 series family of bullet lubricators.
• Heavy-Duty Steel Construction: Designed to handle the physical torque required to displace dense bullet lubricants such as Alox or Orange Magic.
• Cost-Effective Maintenance: Replaces damaged, bent, or stripped pressure screws caused by applying excessive force when the lubricant is cold, extending the service life of the press.
• Purely Mechanical Design: Requires no electrical power, batteries, or external power sources, ensuring reliable operation in any reloading workshop environment.

Product Specifications:

• Brand: Lyman
• Model/SKU: LY-LSPS
• Product Name: Lyman 450 Lube Sizer Pressure Screw
• Shipping Weight: Approximately 0.69 kg (including protective packaging for the threaded rod)
• Power Source: Manual mechanical (no electrical components; 240V compatibility is not applicable)
• Compatible Models: Lyman 45, Lyman 450, and Lyman 4500 series bullet lubricators

Who Is This Product For?

The Lyman LY-LSPS Pressure Screw is designed specifically for Australian cast-bullet reloaders and handloaders who utilize the classic Lyman 45, 450, or 4500 series Lubrisizers. It is an essential maintenance item for shooters who have experienced thread wear or rod breakage due to high-torque pressure demands, particularly when working with stiff lubricants in cooler Australian climates. This component is ideal for precision reloaders who prefer to maintain, service, and extend the lifespan of their high-quality legacy reloading machinery rather than replacing complete assemblies.