The Hornady Large Primer Pocket Cleaner Head (390753) is a steel replacement cleaning head designed for large rifle and large pistol primer pockets, threading onto any standard 8/32 threaded handle to scrub carbon fouling and primer residue from spent brass and prepare cases for consistent, uniform primer seating.
Key Features
- Part Number: 390753
- UPC: 090255907537
- Type: Primer pocket cleaner head, replacement bit
- Size: Large, fits large rifle and large pistol primer pockets
- Material: Steel
- Finish: Silver
- Thread: Universal 8/32, compatible with any 8/32 threaded handle
- Handle: Sold separately
- Compatible Tools: Hornady Case Prep Trio, Hornady accessory handle, and any 8/32 threaded handle
- Quantity: 1 head
- Country of Manufacture: USA
Special Features
- The cross-hatched cutting pattern on the cleaner head scrubs all interior surfaces of the primer pocket simultaneously, removing carbon buildup, primer residue, and oxidation from the pocket floor and sidewalls in a single pass without requiring multiple tool orientations
- The universal 8/32 thread makes this head compatible not only with Hornady handles and the Case Prep Trio but also with virtually any competing primer pocket tool handle that uses the industry-standard 8/32 thread, giving reloaders the flexibility to use existing equipment
- The steel construction maintains cutting geometry through thousands of case preparations without dulling, bending, or deforming under normal use, providing a long service life that makes this a cost-effective addition to any reloading bench
Practical Benefits
- Cleaning the primer pocket before each reloading session removes the carbon and residue that accumulates from firing, ensuring the new primer seats to a consistent depth and makes full, flat contact with the pocket floor, which directly supports uniform ignition and consistent shot-to-shot velocity
- The 390753 is the correct size for all large rifle calibers including .308 Winchester, .30-06, .300 Win Mag, .243 Winchester, 6.5 Creedmoor, and large pistol calibers including .45 ACP, .44 Magnum, and .40 S&W, covering the broadest range of popular reloading calibers with a single head
- Purchasing the replacement head separately rather than a complete tool allows reloaders who already own a compatible handle to add large primer pocket cleaning capability at minimal cost
The Hornady Large Primer Pocket Cleaner Head (390753) is a practical choice for any reloader working with large rifle or large pistol brass who wants clean, consistent primer pockets and reliable ignition from every round loaded.
| MANUFACTURER | HORNADY |