The Lyman Ammo Checker Single Calibre 45-70 (Model: LY-AC4570) is a precision-engineered diagnostic tool designed to verify the dimensional consistency of both factory-manufactured and hand-reloaded ammunition. Crafted specifically for the historic 45-70 Government calibre, this manual gauge ensures that every cartridge complies with strict industry standards before chambering. By utilizing this tool, Australian shooters and reloaders can identify potential chambering issues, oversized cases, or improper bullet seating depths before heading to the range or the field. This proactive quality control step significantly reduces the risk of firearm malfunctions, feeding failures, or unsafe pressure spikes.

Key Features:

• Precision Machined Construction: Crafted from a solid block of high-grade aluminium, ensuring long-term durability, wear resistance, and structural stability for consistent measurements.
• SAAMI Minimum Chamber Tolerances: Cut with custom tooling to exact Sporting Arms and Ammunition Manufacturers' Institute (SAAMI) minimum chamber dimensions, ensuring any cartridge that passes will fit reliably in standard-compliant firearms.
• Versatile Application: Highly effective for checking both standard smokeless powder reloads and traditional black powder cartridge rifle loads.
• Rapid Quality Control: Allows shooters to quickly drop cartridges into the gauge to instantly verify case gauge compliance, bullet seating, and overall cartridge profile.
• Manual Operation: A completely mechanical, non-electrical tool requiring no power source, calibration software, or batteries, making it highly portable and reliable on any reloading bench.

Technical Specifications:

• Brand: Lyman
• Model Number: LY-AC4570
• Calibre Compatibility: 45-70 Government
• Material: Solid Machined Aluminium
• Weight: 0.4 kg
• Standards Compliance: SAAMI minimum chamber tolerances
• Operation: Manual gauge (non-electrical)

Who It Is For:

The Lyman Ammo Checker 45-70 is an essential accessory for Australian target shooters, hunters, and active reloaders who operate firearms chambered in the 45-70 Government calibre. Whether you are preparing high-pressure hunting loads, assembling precise black powder cartridge rifle ammunition, or simply verifying the consistency of bulk-purchased factory rounds, this tool provides necessary quality assurance. It is particularly valuable for competitive shooters who require absolute reliability during matches, as well as remote hunters in Australia who cannot afford a jammed action or feeding failure when in the field.