The Lock-N-Load Bullet Comparator Insert is a precision-machined reloading tool designed for serious shooters and hunters who demand consistent accuracy. Working with the main Bullet Comparator Body (sold separately), this insert allows reloaders to measure cartridge and bullet length from a precise reference point, improving reliability in every load. By measuring from the Cartridge Base To Ogive (CBTO) rather than the bullet tip, it eliminates tip variation that can cause errors of up to 0.025. The ogive—the curved section of the bullet that first contacts the rifling—is far more consistent, ensuring every round is measured with superior accuracy. This insert also ensures seating depth consistency, helping reloaders set their bullet seating die to achieve identical depth for every cartridge. Consistent CBTO measurements are critical for lowering velocity standard deviation (SD) and achieving tight shot groups in calibres such as .223 Remington/5.56 NATO, .22-250 Remington, .222 Remington, and .224 Valkyrie. When paired with the Hornady O.A.L. Gauge, it allows shooters to determine the exact “jump” to the rifle’s lands, a vital step in tuning loads for peak precision. Ideal for hunters, target shooters, and long-range enthusiasts across Australia, this insert is a must-have addition to any reloading bench. Available through Xhunter Australia, it complements a wide range of hunting gear, shooting optics, rifle scopes, and tactical accessories for those who take accuracy seriously in the field or at the range.

KEY FEATURES

• Product Type: Bullet Comparator Insert
• Compatibility: Works with Lock-N-Load Bullet Comparator Body (sold separately)
• Measurement Type: Cartridge Base To Ogive (CBTO)
• Primary Function: Measures loaded cartridge or bullet length from a reliable reference point
• Feature: Eliminates bullet tip variation errors up to 0.025
• Benefit: Ensures consistent bullet seating depth
• Application: Used for determining bullet jump to rifling lands
• Supported Cartridges: .223 Remington/5.56 NATO, .22-250 Remington, .222 Remington, .224 Valkyrie
• Material: Precision-machined metal
• Use Case: For load development and accuracy tuning