The Hornady Primer Pocket Cleaner Head, Large (Hornady part no. 390753), scrapes carbon fouling out of Large Rifle/Large Pistol primer pockets left behind after firing. Clean pockets matter for consistent reloading: a fouled pocket can keep a new primer from seating to full, even depth, which affects ignition consistency. Precision handloaders run one of these across every case in a batch before priming to keep seating depth uniform. Find the correct size in our reloading equipment lineup.

Key Specifications

• Ships at a listed weight of about 0.3 oz, a light add-on to any case-prep order.
• Sized for Large primer pockets.
• Classified by Hornady as a Case Cleaner head.
• Scrapes carbon fouling out of the primer pocket left behind by the fired primer.
• Prepares the pocket for more consistent, positive seating of the new primer.
• Matches standard Large Rifle/Large Pistol primer pocket dimensions.
• A reusable cleaning tool, not a one-time consumable.
• Finished in silver, per Hornady’s standard case-prep tool line.
• Sold as a replacement head — designed to chuck into a driver or handle rather than being used bare-handed.

Frequently Asked Questions

Why clean the primer pocket before reloading? Fouling left by the fired primer can keep the new primer from seating to a consistent depth; scraping it out restores an even, repeatable primer pocket.

What size primer pocket does this head fit? The Large size, matching Large Rifle/Large Pistol primer pockets.

Does this include a handle? No — it’s the replacement cleaning head only, meant to chuck into a driver or handle you already own.

Buy the Hornady Primer Pocket Cleaner Head, Large

Order it from our Lubbock, Texas gun shop for fast, reliable shipping. Both Large and Small sizes are stocked together.