Best Black Powder Caps for #11 Primers and Muzzleloaders
If you’re shopping for black powder caps and related accessories, you’re likely looking for reliable ignition and smooth loading. This guide highlights five top options that work with #11 caps and common muzzleloader setups. It’s suited for beginners needing straightforward priming solutions and experienced shooters seeking quick, dependable reloading. The selections cover cap size compatibility, loading ease, and practical use in range or field conditions. The following table compares the featured products at a glance to help you decide where to start.
| Product | Best For | Why It Stands Out |
|---|---|---|
| Muzzleloader .44/.45 Caliber Lubricated Black-Powder Revolver Wads – 100 Pack | Revolvers and patches | Three-layer use with wool felt wads for consistent loadings |
| Universal Black Powder Capper | Cap handling | Compact, dedicated tool for caps and quick priming |
| Black Powder Bore Grease Lubricant Butter | Lubrication and protection | Temperature-stable, active corrosion protection |
| True 4″ x 4″ Heavy Duty Aluminium Post Cap | Post mounting accessories | Not a capper—great fit for 4×4 posts, durable finish |
| Muzzle-Loaders Flexible Black Powder Revolver #10 Star Cappers – 6-Pack | Cap dispensing | Easy cap placement, high-visibility design |
Muzzleloader .44/.45 Caliber Lubricated Black-Powder Revolver Wads

Best for revolvers using .44 and .45 calibers, these 3mm thick wool felt wads are designed to fit precisely with standard black powder charges. The pack includes 100 wads for extended shooting sessions. Use this option when you want consistent wad performance to reduce bore fouling and improve stamping pressure. Caution: verify compatibility with your exact powder and cap setup to avoid misfit or pressure issues.
Universal Black Powder Capper

This capper is best for shooters who want a dedicated tool to handle #11 caps efficiently. It provides a compact, precise way to place caps on nipples, reducing fumbling at the bench or on the range. Choose this if you value straightforward priming and minimal hand strain during reloading. Caution: ensure the capper’s jaw width is compatible with your specific nipple profile to avoid slippage.
Black Powder Bore Grease Lubricant Butter

Best for lubrication and protection across muzzleloaders, this bore grease is described as temperature-stable and protective against corrosion. It helps seal chambers and keeps patches and bullets loading smoothly. Use this when storage and long-term bore maintenance matter or when you shoot in varied climates. Caution: excessive application can attract buildup if not cleaned properly after shooting.
True 4″ x 4″ Heavy Duty Aluminium Post Cap

Best for wooden fence and deck posts, this post cap is sized for rough lumber 4″ x 4″ posts. It’s a practical accessory for finish and protection, not a capper. Best for homeowners or hobbyists maintaining wooden structures who want a robust, decorative cap. Caution: not designed to fit other post sizes; measure your post accurately before ordering.
Muzzle-Loaders Flexible Black Powder Revolver #10 Star Cappers

Best for quick priming of #10 percussion caps, this star-pattern capper enables fast cap placement on nipples for faster reloads. It’s highlighted by high-visibility orange for easy finding in bags or on ground during range use. Choose this if you prioritize speed and visibility. Limitation: designed specifically for #10 caps, not for #11 caps; use accordingly.
Buying Guide
Key purchase considerations help align product choices with your muzzleloading setup and practice style.
- Cap compatibility: Confirm cap size (e.g., #11 vs #10) with your firearm’s nipples and the capper’s compatibility to avoid misfires.
- Usage scenario: For range practice, prioritize visibility features and ease of use; for field hunting, durability and load consistency matter more.
- Lubrication and bore protection: If you shoot in humid or corrosive environments, bore grease can extend barrel life and improve load consistency between shots.
- Post accessories: When integrating with wooden posts or decor, ensure dimensions match; this is not a cap product but can complement a shop setting.
- Maintenance: Simple cleaning after shooting preserves cap seating and reduces misfires; consider products that aid cleaning along with loading.
FAQ
- What size caps do I need for my muzzleloader?
Most muzzleloaders use either #11 or #10 percussion caps. Check your firearm’s nipple size and the capper’s compatibility to select the correct cap size.
- Are black powder wads essential for every load?
Wads help seal the bore and can improve consistency with certain loads. They are optional depending on your musket or revolver configuration.
- Is bore grease safe for long-term storage?
Yes, if it contains corrosion inhibitors; it shields metal parts from moisture and residues when stored properly.
- Can I use a capper designed for #10 caps with #11 caps?
Not reliably. Caps and nipples have specific dimensions; using the wrong size can cause misfires or cap detachment.
- What is the best way to carry caps and wads in the field?
Use a dedicated range bag or capper pouch with clearly labeled compartments to prevent loss and ensure quick access during loading.
- Do post caps improve accuracy or aesthetics?
Post caps mainly protect and finish wooden posts; they do not influence firearm performance.