Bullet Comparator Set With 7 Inserts. The Hornady Lock-N-Load Bullet Comparator is perfect for the reloader looking to quickly and precisely measure the seating depth of loaded ammunition from the bullet ogive to the base of the loaded round, to eliminate variation in seating depth. The comparator attaches to any caliper and measures cartridges from 17 to 45 caliber. When used in conjunction with the Hornady Lock-N-Load Overall Length Gauge (Sold Separately) you will able to determine the exact bullet seating depth for the ultimate precision.

Kit Includes:

• Comparator body
• 7 Comparator inserts for the following diameter bullets: 224, 243, 257, 264, 277, 284, and 308. Other inserts are sold separately.
• Allen wrench

Specifications:

• Slot on the comparator body is cut off-center
• To position the comparator with the Hornady Lock-N-Load Overall Length Gauge, install the comparator body to the caliper with the screw through the thicker leg of the body. This allows the proper off-center alignment of the Length Gauge.
• Made In the United States of America