Last reviewed: 2026-04-17 by Jake Terry, FFL07/SOT3, NRA-certified firearms instructor.
The Brenneke Black Magic Magnum 12 gauge slug is a 3″ rifled projectile engineered for hunters who need maximum stopping power on large and dangerous game. At 1-3/8 ounces, it ranks among the heaviest slugs available — muzzle velocity reaches 1502 feet per second, and muzzle energy peaks at 3014 foot-pounds. Brenneke applies its CleanSpeed coating to reduce lead fouling in the bore, extending barrel life and maintaining accuracy over extended shooting sessions. The slug is compatible with both rifled and smoothbore barrels when used with chokes no tighter than improved cylinder. Factory testing documented 2-inch groups at 50 yards and 3-inch groups at 100 yards from smoothbore barrels — performance that makes this load viable for hunters who need first-round hits at extended distances.
Load Profile
Brenneke sources high-quality components and applies strict quality control during manufacturing. The Black Magic Magnum uses a Boxer primer and features a roll crimp on the 3″ hull. The projectile is a traditional rifled slug design with external ribs that engage the bore and impart stabilizing spin. The CleanSpeed coating is a proprietary surface treatment that minimizes lead deposits in the barrel — a practical concern for hunters who fire multiple rounds during sight-in or extended hunts. The slug is reloadable, and the hull is constructed to withstand the pressures generated by the heavy projectile and high velocity. This load is non-toxic-exempt and contains lead; DOT shipping regulations apply.
The Numbers
| Spec | Value |
|---|---|
| Gauge | 12 Gauge |
| Shell Length | 3″ |
| Shot/Slug Type | Rifled Slug |
| Slug Weight | 1-3/8 Ounce |
| Muzzle Velocity | 1502 fps |
| Muzzle Energy | 3014 ft-lbs |
| Primer | Boxer |
| Corrosive | No |
| Reloadable | Yes |
| Barrel Type | Rifled or Smooth Bore |
| Crimp | Roll |
| Rounds/Box | 5 |
| Intended Use | Big Game |
| Manufacturer | Brenneke |
This load is purpose-built for hunters pursuing bear, feral hogs, and other large or dangerous game where deep penetration and bone-breaking energy are required. Browse the full selection of 12 gauge slugs to compare velocity, weight, and accuracy specifications across manufacturers.
Safe Handling & Compliance
Federal law requires purchasers to be at least 18 years old for rifle and shotgun ammunition, and at least 21 for handgun ammunition. Ammunition cannot be shipped to certain states, counties, and cities — review our ammunition shipping restrictions before ordering. Store ammunition in a cool, dry location away from heat sources and out of reach of unauthorized users.
- Observe the four universal rules of firearm safety at all times — treat every firearm as loaded, keep your finger off the trigger until ready to fire, never point at anything you are not willing to destroy, and be certain of your target and what lies beyond it.
- Verify current state and local laws regarding ammunition purchase, possession, and use. Some jurisdictions impose restrictions on projectile weight, shell length, or slug type for hunting applications.
- This product contains lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm (Proposition 65). Wash hands thoroughly after handling. Maximum effective range of a slug can exceed 2000 yards — always verify a safe backstop and know what lies beyond your target.
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