Lyman 6" Stainless Steel Digital Caliper - Precision Measuring Tool

Whether you're working up a precision rifle load, sorting brass by specification, or checking neck thickness on fired cases, the Lyman 6" Stainless Steel Digital Caliper brings accuracy and repeatability to your reloading bench. This stainless steel caliper handles the measuring tasks that matter most to handloaders—inside, outside, and depth measurements—with a crisp LCD readout that eliminates the eyestrain and guesswork of verifying critical dimensions.

The tool reads across a full 6 inches (150mm) of range, giving you enough span for measuring case lengths, bullet diameters, and primer pocket dimensions without switching instruments. A push-button zero function lets you establish a reference dimension and then quickly sort components by comparing plus-or-minus variation from that baseline—a real time-saver when you need to cull brass or verify loaded rounds. The manual on/off switch preserves battery life between sessions, and a single toggle button flips between inch and millimeter readouts instantly, so you can work comfortably in either measurement system.

Built in stainless steel for longevity on the bench, this caliper is built to handle the routine precision work that separates reliable ammunition from guesswork. It's not flashy, but it does what reloaders actually need: deliver consistent, repeatable measurements you can trust.

Key Features

• Inside, outside, and depth measuring functions in one tool
• LCD digital readout for easy, accurate readings without interpretation
• Push-button zero function for sorting components by dimensional variation
• 6-inch (150mm) measurement range covers most reloading tasks
• Single toggle switch converts instantly between inch and millimeter scales
• Stainless steel construction resists corrosion on the reloading bench
• Manual on/off switch for battery conservation

Specifications

Frequently Asked Questions

What reloading measurements can I make with this caliper?

The inside, outside, and depth functions cover the core measuring tasks on the reloading bench: case length, bullet diameter, case neck wall thickness, primer pocket depth, and overall loaded round length. The 6-inch range is sufficient for virtually all small arms reloading work.

Can I use the zero function to sort brass by variation?

Yes. The push-button zero lets you set a reference dimension—for example, your target case length—and then compare each piece as a plus-or-minus deviation from that standard. This is a fast way to cull brass or verify that loaded rounds fall within your tolerance window.

Does this caliper work in both inches and millimeters?

Yes. A single toggle button switches the display instantly between inch and millimeter scales, so you can work in whichever system your load data uses without needing a separate tool.

Why stainless steel for a reloading tool?

Stainless steel resists corrosion and tarnishing from powder residue and cleaning solvents that accumulate on the reloading bench, ensuring the caliper remains reliable and readable over years of use.