CCI #11 Mag Percussion Caps (100/50)

CCI #11 Mag percussion caps keep traditional muzzleloaders and cap and ball revolvers firing with the consistency modern shooters expect. Each box carries 100 caps in the popular number 11 size, a standard fitment across a huge range of percussion rifles, pistols, and revolvers. The magnum designation is the difference, delivering a hotter and more forceful flash for positive ignition.

Black powder shooters know that most misfires trace back to the cap rather than the charge. Quality priming matters more here than almost anywhere else in the shooting sports.

When You Want CCI #11 Mag Caps Instead of a Standard Cap

A magnum cap produces a stronger, hotter flash than a standard cap of the same size. That extra energy matters when you are burning heavier charges, when the powder column is long, or when you are shooting substitute propellants that ask more of the ignition system. It also helps in replica revolvers that can be genuinely finicky about lighting off.

This is the cap for the hunter loading near the top of his rifle’s range, the reenactor who wants no hesitation between the hammer and the report, and the revolver shooter tired of rotating the cylinder past a dud chamber. If your standard caps have ever given you a click and a pause instead of a boom, the magnum version is the first thing to try.

Key Features

• Magnum priming compound for a hotter, more forceful flash than standard caps
• Number 11 sizing, the most widely used percussion cap fitment in traditional shooting
• One hundred caps per box so a full range day never ends early
• Made by CCI, a name trusted in priming for decades across ammunition and reloading
• Particularly useful with heavy charges and in replica cap and ball revolvers
• Compatible with the same nipples that accept standard number 11 caps

Reading the Specifications

The listed specifications are straightforward: type percussion caps, size number 11 magnum, quantity 100 per box, manufacturer CCI. The magnum line is the one doing the heavy lifting on this particular product.

Because the physical size is still number 11, fitment does not change. You are not adjusting nipples or shopping for a different capper, you are simply putting more fire into the same flash channel. That makes swapping between standard and CCI #11 Mag caps a genuinely easy experiment on the range.

One hundred caps sounds like plenty until a good blackpowder session gets rolling. A revolver shooter can work through a box in an afternoon of steady cylinder loads, and a hunter doing serious load development is not far behind. Keeping several boxes on hand is simply realistic planning.

Loading, Care, and Compatibility Notes

Seat each cap fully and squarely with a capper so the hammer transfers its full energy into the priming compound. Pick the nipple clear before every session, since fouling in the channel wastes even a magnum flash. On revolvers, check that spent cap fragments are not falling into the action, which is the classic cause of a jammed cylinder.

Store the box sealed, dry, and away from oils and solvents. Priming compound ages well but hates moisture, so a small waterproof container in your bag beats a loose tin in a coat pocket every time. Rotate older stock forward and shoot it first.

Always confirm the cap size your firearm’s manufacturer specifies before you buy in bulk. Once you have the fit sorted, round out the kit with cappers, pouches, and cleaning gear from our Parts and Upgrades collection.

A good day of blackpowder shooting goes through caps quickly, and nothing ends a session faster than running out. Stock CCI #11 Mag caps deep and let CCI handle the part of the shot you cannot see. Ships direct to your door, no FFL required.