Hornady One-Shot Muzzleloader Cleaner & Protectant

Description

Let me paint you a picture. It’s late November, the Missouri whitetail season is over, and you’ve just spent the last hour scrubbing black powder fouling from your Thompson/Center or CVA muzzleloader. Your hands are stained, you’ve gone through a pile of patches, and you’re wondering if there’s a better way. Look, I’ve been there. That’s why I started using the Hornady One-Shot Muzzleloader Cleaner And Protectant Pump Spray. It’s a specialized aerosol spray designed to clean, lubricate, and protect black powder firearms in one step, drastically cutting down on post-range or post-hunt maintenance time. No more mixing solvents and oils—this is an all-in-one solution that tackles the unique corrosive residue left by black powder and its substitutes.

Here’s the thing—traditional cleaning for a muzzleloader is a ritual, but it doesn’t have to be a chore. This pump spray is engineered specifically for the task. The formula works to dissolve and loosen stubborn fouling in the bore and around the breech plug. More importantly, it leaves behind a protective film that guards against rust, which is critical for a firearm that might sit for months between seasons. I’ve used it on my own sidelocks and inlines, and the difference in cleanup speed is noticeable. You can find it on our site for $10.16, a small price for a product that genuinely simplifies a messy job.

Key Features & How It Works

The core benefit is consolidation. Instead of a cleaning solvent, a separate lubricant, and a protectant, you get one 11-ounce aerosol can that does all three. You spray it directly onto fouled surfaces—down the bore, on the breech plug threads, on the hammer mechanism. The propellant helps drive the formula into crevices. It breaks down the hygroscopic fouling that attracts moisture and causes rust. After a quick scrub with a bore brush and a pass with a patch, you’re essentially done. The residual coating it leaves is both a lubricant for moving parts and a barrier against corrosion. It’s drop-in ready for your cleaning routine—no gunsmithing required, just shake and spray.

Compatibility is broad. This isn’t just for modern inlines; it works on cap-and-ball revolvers, traditional sidelocks, and even black powder cartridge guns. I’ve used it effectively on my Pedersoli rifle and a buddy’s Knight muzzleloader with equal results. The key is using a product formulated for the specific chemistry of black powder residue, which is far more corrosive and water-attracting than smokeless powder residue. That said, it’s not a miracle in a can for decades of neglect, but for routine cleaning after a day at the range or in the field, it’s a massive time-saver.

Product Specifications

Specification	Detail
Product Name	Hornady One-Shot Muzzleloader Cleaner & Protectant
Container	Aerosol Pump Spray
Net Weight	11 oz (312 g)
Primary Use	Clean, Lubricate, & Protect Black Powder Firearms
Action	Loosens Fouling, Inhibits Rust
Compatibility	Muzzleloaders, Cap & Ball, Black Powder Cartridge Guns

Pros & Cons

The Good: It massively streamlines the cleaning process. The aerosol application is convenient and gets into places a soaked patch might not. It leaves a protective coating that provides peace of mind during storage. The price point is very accessible for a dedicated, brand-name muzzleloader care product. It’s effective on both pyrodex and real black powder fouling.

The Considerations: As an aerosol, it’s not ideal for confined spaces without ventilation—use it in a well-ventilated area or your garage. You’ll still need patches and a rod/brush system; this replaces the solvents and oils, not the tools. For heavily caked-on fouling from a long shooting session, you may need to let it soak or use a more aggressive initial brush.

Who This Is For

This is for the muzzleloader hunter who values their time after the hunt. It’s for the traditional shooter who enjoys their cap-and-ball revolver but dreads the cleanup. It’s also a great option for the new inline shooter intimidated by the multi-step cleaning process. If you own a CVA, Traditions, Thompson/Center, or any other black powder firearm and want to cut your maintenance time in half while ensuring it’s protected, this pump spray is a logical addition to your kit. It’s available at firearms-missouri.com for Missouri residents and nationwide to compliant states.

Frequently Asked Questions

Q: Can I use this on my modern centerfire rifle?

A: I wouldn’t recommend it as a primary cleaner. While it likely won’t harm it, it’s specifically formulated for the different, more corrosive residue of black powder. For smokeless powder firearms, use a cleaner designed for that purpose.

Q: How long does the protective coating last?

A: For seasonal storage, it provides excellent protection. If you’re in a very humid environment or storing the firearm long-term (over 6 months), a visual check and a light reapplication on external metal wouldn’t hurt. For a firearm stored in a climate-controlled safe, the coating from a proper cleaning should last the offseason.

Q: Do I need to use water or other solvents with it?

A: No, that’s the point. It’s designed as a complete cleaner and protectant. Using water can dilute its effectiveness and potentially interfere with the corrosion-inhibiting properties of the film it leaves behind. Use it as directed, follow with dry patches until clean, and you’re set.

If you’re tired of the post-muzzleloader cleaning marathon, give this Hornady One-Shot system a try. It’s a straightforward solution that does exactly what it promises.