Hornady-Style Bullet Comparator Insert Set | Precision Measurement Tools
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This 3D-printable set of comparator inserts is designed to work with standard Lock-N-Load style bodies.
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Informacje o modelu
- Źródło
- Printables
- Kategoria
- Other Sports
- Licencja
- Creative Commons — Attribution
Overview
Achieving consistent seating depth and measuring from the bullet ogive rather than the tip is essential for long-range precision. This 3D-printable set of comparator inserts is designed to work with standard Lock-N-Load style bodies. These inserts allow shooters and reloaders to obtain highly accurate, repeatable measurements of their cartridges, ensuring that every round is seated to the exact same depth for optimal ballistic performance.
Why use this ?
Ogive-Based Measurement: Measures from the bullet ogive to provide more consistent data than measuring to the often-irregular polymer or lead tips.
Comprehensive Caliber Support: The set includes multiple diameters to cover a wide range of popular shooting calibers.
Cost-Effective Precision: A high-quality DIY alternative for reloaders who need specialized measurement tools without the premium price tag.
Durable Design: Engineered with thick walls to maintain dimensional stability over thousands of measurements at the bench.
Technical Specifications & Printing
For these tools to be effective, dimensional accuracy and surface finish are critical.
Material: PLA or PETG. Using a stiff, low-shrinkage filament like PLA is recommended for the most accurate internal diameters.
Layer Height: 0.1mm to 0.12mm. Using a fine layer height is necessary to ensure the internal taper is smooth and seats perfectly on the bullet ogive.
Infill: 100% (Solid). Solid infill ensures the insert will not compress or deform under the pressure of the calipers.
Walls/Perimeters: 4+ wall loops for maximum structural integrity around the measurement orifice.
How to Use
Snap the desired insert into your comparator body attached to your calipers.
Zero your calipers on the closed insert or according to your specific reloading manual's instructions.
Place the cartridge into the insert so the ogive makes contact with the internal taper.
Record your measurement for perfect seating depth consistency across your entire batch.
About the Project
Part of the Taka Tech Lab series—bridging the gap between DIY maker culture and professional sports shooting equipment.