
Availability: In Stock
The Hornady Lock-N-Load Horn B2000 Comparator Body is the hub of Hornady's modular bullet comparator system, designed for reloaders who need precise bullet seating depth measurement and case trim control. If you're working with the Lock-N-Load platform and want repeatable, accurate dimensions without guesswork, this comparator body is your foundation—it accepts interchangeable inserts (sold separately) to measure bullets of different calibers and profiles.
Built into Hornady's ecosystem, the comparator body locks into the Lock-N-Load press or works with other compatible fixtures, letting you dial in bullet seating depth to match your rifle's chamber or achieve your preferred bearing-surface engagement. This approach eliminates the trial-and-error of traditional overall cartridge length measurement, especially valuable when you're matching loads across multiple gun platforms or chasing sub-MOA accuracy. The modular design also means you can expand to new calibers and bullet weights by swapping inserts rather than buying a whole new tool.
Reloaders serious about consistency—whether you're prepping match ammo, hunting rounds, or load development—appreciate having a repeatable reference point. The Horn B2000 body pairs with Hornady's line of caliber-specific comparator inserts to give you that control across your cartridge collection.
A bullet comparator body measures the overall length of a seated bullet relative to a datum reference point on the cartridge case (usually the ogive, or bullet nose profile). This is more precise than traditional cartridge length measurement because it accounts for bullet seating depth relative to the actual bullet shape. It's essential for consistency in handloading, especially for accurate and repeatable ammunition.
Yes. The Horn B2000 Comparator Body is the base unit; caliber-specific inserts are sold separately and allow you to measure different bullet profiles and calibers with the same body.
The comparator body is part of Hornady's Lock-N-Load system and is designed to work with Lock-N-Load compatible equipment. Confirm compatibility with your specific press or fixture before purchase.
The comparator body provides a datum measurement that can inform trim-to-length decisions, but it is primarily a bullet seating depth measurement tool. Use it in conjunction with case length gauges for complete trim control.

SKU: 152746645 • Width: 1.9in • Height: 1in • Depth: 4.8in • Weight: 0.05oz





Availability: In Stock
The Hornady Lock-N-Load Horn B2000 Comparator Body is the hub of Hornady's modular bullet comparator system, designed for reloaders who need precise bullet seating depth measurement and case trim control. If you're working with the Lock-N-Load platform and want repeatable, accurate dimensions without guesswork, this comparator body is your foundation—it accepts interchangeable inserts (sold separately) to measure bullets of different calibers and profiles.
Built into Hornady's ecosystem, the comparator body locks into the Lock-N-Load press or works with other compatible fixtures, letting you dial in bullet seating depth to match your rifle's chamber or achieve your preferred bearing-surface engagement. This approach eliminates the trial-and-error of traditional overall cartridge length measurement, especially valuable when you're matching loads across multiple gun platforms or chasing sub-MOA accuracy. The modular design also means you can expand to new calibers and bullet weights by swapping inserts rather than buying a whole new tool.
Reloaders serious about consistency—whether you're prepping match ammo, hunting rounds, or load development—appreciate having a repeatable reference point. The Horn B2000 body pairs with Hornady's line of caliber-specific comparator inserts to give you that control across your cartridge collection.
A bullet comparator body measures the overall length of a seated bullet relative to a datum reference point on the cartridge case (usually the ogive, or bullet nose profile). This is more precise than traditional cartridge length measurement because it accounts for bullet seating depth relative to the actual bullet shape. It's essential for consistency in handloading, especially for accurate and repeatable ammunition.
Yes. The Horn B2000 Comparator Body is the base unit; caliber-specific inserts are sold separately and allow you to measure different bullet profiles and calibers with the same body.
The comparator body is part of Hornady's Lock-N-Load system and is designed to work with Lock-N-Load compatible equipment. Confirm compatibility with your specific press or fixture before purchase.
The comparator body provides a datum measurement that can inform trim-to-length decisions, but it is primarily a bullet seating depth measurement tool. Use it in conjunction with case length gauges for complete trim control.
SKU: 152746645 • Width: 1.9in • Height: 1in • Depth: 4.8in • Weight: 0.05oz
