Description
Modular Bullet Insert
Introducing the Precision Modular Bullet Insert, the ultimate tool for discerning shooters and reloaders seeking unmatched accuracy in their measurements. Designed with a unique 3.0 degree “lead angle,” this innovative comparator ensures that your bullet’s ogive contacts precisely where it would in your barrel, delivering the most reliable and consistent readings. Crafted from robust 17-4 Stainless Steel, our comparator is not just a tool—it’s an essential companion for achieving optimal performance in every round you load.
Precision Modular Bullet Insert
Key Features:
– 3.0 degree “lead angle” for precise ogive contact
– Mimics exact barrel contact point for superior accuracy
– Manufactured from durable 17-4 Stainless Steel
– Available as individual inserts or full kit options (see below)
Product Specifications:
– Example: 6.5mm Modular Bullet Insert
– Starting diameter: .266″
– Ending diameter: .256″
– Angle: 3.0 degrees
Benefits:
– Ensures the most accurate and useful measurements
– Ideal for measuring bullet and loaded ammunition consistency
– Compatible with various calibers (modular design)
Cross-compatibility:
– 9mm insert also fits 35 Whelen
Options:
– Individual Modular Headspace Comparator body
– Full Modular Headspace Comparator kit (includes 4 Inserts of your choice)
Experience unparalleled precision in bullet comparison with our state-of-the-art Modular Bullet Comparator. Engineered for serious shooters and reloaders who demand the highest level of accuracy.







Dave A (verified owner) –
Fantastic comparator! I purchased several bullet and headspace inserts with the short and long bodies as an upgrade from the Hornady set. The machine work, fit and finish is impeccable. The o-ring system is amazing…no more digging out an allen key for comparator changes. The choice of stainless steel as opposed to aluminum means it will maintain consistency as it won’t wear down over time with use. These are top notch tools and a must have for precise reloading.
Charles Giles –
I have to say I absolutely love the stainless inserts they are amazing checking BTO is smooth as silk unlike the Hornady set. The fit and finish is stunning these are a functional work of art.
Zero regrets a must have for every reloading bench.