Description
The Hornady Lock-N-Load Bullet Comparator Set provides a reliable method to measure cartridge overall length from the bullet ogive rather than the tip, reducing common tip-related variation of up to 0.025 inches. The comparator attaches to the blade of a caliper and uses interchangeable inserts to measure from a consistent surface on the bullet for repeatable results. This tool is intended for reloaders and precision-minded shooters who need to verify cartridge length and check bullet uniformity. The set includes a comparator body and a comprehensive range of inserts to cover multiple diameters.
Key Specifications
- The set includes one comparator body and 14 bullet inserts.
- It measures cartridge length from the bullet ogive to provide consistent, repeatable measurements.
- The comparator attaches to a caliper blade using a thumbscrew for secure positioning.
- Includes inserts for diameters .172 .204 .224 (5.56mm) .243 (6mm) .257 .264 .277 .284 (7mm) .308 (7.62&8mm) .338 .358 .375 .458 .416.
- Compatible with digital or dial calipers (micrometer type: Digital/Dial).
- Constructed from metal with a silver/red finish.
- The tool’s primary function is to measure cartridge lengths and check bullet uniformity.
- Product weight is listed as 0.26 lbs with a shipping weight of 0.25.
- Quantity in the package is 1 set.
Practical and straightforward, this Hornady comparator set streamlines length verification and uniformity checks during reloading and load development. Its ogive-based measurement method and broad insert range make it a useful addition to any bench where precise, repeatable cartridge measurements matter.





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