The Hornady Lock-N-Load Bullet Comparator is perfect for the reloader looking to quickly and precisely measure seating depth of loaded ammunition from the bullet ogive to the base of a 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 are able to determine the exact bullet seating depth for the ultimate precision.

Kit Includes:

• Comparator body
• 14 inserts for use with the following diameter bullets: 172, 204, 224, 243, 257, 264, 277, 284, 308, 338, 358, 375, 416 and 458.
• Allen wrench

Notes:

• Slot on comparator body is cut off-center
• To position the comparator with the Hornady Lock-N-Load Overall Length Gauge, install 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.