Hornady Neck Turn Mandrel 20 Cal .204 Reloading Tool
S118667
- Calibre-specific mandrel for use with the Hornady Neck Turning Tool — 20 Cal (.204)
- Sits inside the case neck during turning to support and centre it from within
- Allows the cutter to shave the outside neck wall to a uniform thickness
- Improves neck-wall concentricity and consistency across cases in a batch
- Consistent neck thickness promotes even neck tension and reliable bullet seating
- Sold separately — extends an existing Hornady Neck Turning Tool to cover .204 cases
- For use with .204 Ruger and other 20 calibre cartridges requiring neck preparation
The Hornady Neck Turn Mandrel for 20 calibre (.204) is a calibre-specific insert designed for use with the Hornady Neck Turning Tool. During the neck-turning process, the mandrel is placed inside the cartridge case neck, where it acts as a precision support while the cutter shaves the outside wall to a uniform thickness. By holding the neck concentrically from the inside, the mandrel ensures the cutter removes material evenly around the full circumference, producing consistent neck-wall thickness and improving concentricity case to case. This directly benefits neck tension uniformity, seating consistency and shot-to-shot accuracy in precision rifle shooting. The .204 mandrel is sold separately, allowing reloaders to extend an existing Hornady Neck Turning Tool setup to cover 20 calibre cases such as the .204 Ruger without purchasing an entirely new tool. An essential component for the serious handloader who works with this calibre and demands the highest level of case preparation.
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