Buy Hornady Lock N Load Comparator Set Body & 14 InsertsHornady Lock N Load Comparator Set Body & 14 Inserts Product Description:
- Includes lock n load comparator, 14 inserts, product manual
- Attaches easily to the blade of your caliper
- inexpensive and simple way to improve accuracy
- Comes with 14 inserts
Product Description
Measuring cartridge lengths across the bullet tips is not a reliable (or repeatable) method for measuring you loaded rounds. It's common for variations of up to .025" to exist from one round to the next. Hornady's bullet comparator solves that problem by measuring rounds from a reliable surface on the bullet, the ogive, to provide consistent, precise measurements of your rounds. Hornady's Bullet Comparator attaches to the blade of your caliper with a thumbscrew and uses interchangeable insert bushings to measure from the bullet ogive. These bushings are available in fourteen sizes from .17 caliber to .45 caliber. This set comes with inserts for following bullet diameters, .172", .204", .224"(5.56mm), .243"(6mm), .257", .264, .277", .284"(7mm), .308"(7.62 & 8mm), .338", .358", .375", .416", .458"
Customer Reviews
Most helpful customer reviews
1 of 1 people found the following review helpful.
Essential for use of OAL gauge
By Tompharm
Comparator allows accurate measurement of secant ogive shaped bullets, the design used for modern very low drag (VLD) bullets. Very crudely put, these bullets taper continuously, as opposed to traditional tangent ogive bullets, so the nose is farther up the barrel when the bullet touches the lands. The overall measured OAL on cartridges made with these VLD, secant shaped bullets doesn't correlate well with the published max, which is based on tangent ogive shaped bullets. To get an accurate offset from the lands you need to determine the OAL using a bullet comparator. Like many hand loading tools, you will need to spend some time studying details of use and then fooling with it before it works well. Look at the videos posted on You-Tube. Bottom line, buy the bullet comparator if you use the Hornady OAL gauge.
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