Description
The Brenneke Magnum 410 GA 3 in Slug turns the humble .410 into a surprisingly capable small game and predator gun. Many hunters remember a .410 as their very first shotgun, but few have seen one shoot like this. Designed for three-inch chambers, the load drives a 1/4 oz (109 grain) solid lead slug at a rated 1755 feet per second, producing roughly 781 foot-pounds of muzzle energy. Brenneke says it is as accurate as many .22 rimfire loads while carrying far more power, and recoil stays light enough for new shooters to enjoy.

Why Shooters Like This 410 Slug
Light recoil makes it a good choice for new and younger shooters
Built for .410 shotguns with 3 inch chambers
Functions well in semi-automatic .410 shotguns
Safe to use in rifled or smoothbore barrels
Solid lead Brenneke slug designed for accuracy and consistent groups
Brenneke Magnum 410 GA 3 in Slug Performance
Rated muzzle velocity of 1755 fps
About 781 ft-lbs of muzzle energy
Flat trajectory for small game and predators out to roughly 30 to 35 yards
Accuracy that rivals many rimfire loads at short range
Because the slug is fairly light, shot placement matters more than raw power. Keep shots at sensible distances, pick clean broadside angles on small game and predators, and know what is beyond your target, since a slug travels much farther than birdshot.
Many owners keep a .410 by the barn door or in the truck because it is light, handy and easy to shoot. Loading a few of these slugs alongside birdshot gives that same gun a second job: dealing with a raccoon in the feed room, a fox near the chickens or a snake along the fence. Knowing where the slug lands at 15 and 25 yards makes those quick decisions much easier.
Specifications
- Brand: Brenneke
- Model: Magnum .410
- Gauge: .410 bore
- Shell Length: 3 inch
- Slug Weight: 1/4 oz (7 g / 109 gr)
- Velocity: 1755 fps
- Energy: 781 ft-lbs
- Brenneke Item: SL-4103M
- Quantity: 5 rounds
- UPC: 4030128360287
Great Youth Shotgun Ammo
A .410 is often the first shotgun a young hunter carries, and this load lets that same gun handle both shotshells and slugs. It is a practical way to teach the basics of sight picture, trigger control and safe shot selection with a single low-recoiling, economical firearm, whether the target is a paper plate, a tin can or a squirrel on a fence line.
As a small game slug, it also works well around farms and ranches where a light gun is kept handy for pests. Brenneke has made slugs in Germany since 1898, and the consistency of each round in the box shows that experience.
Hunters and farm owners who keep a 3 inch .410 shotgun for small game, predators and pests will get the most from this load, as will parents introducing a young shooter to slugs. It serves as a capable varmint shotgun load for coyotes and foxes at close range. Always confirm your chamber is marked for 3 inch shells, and follow all federal, state and local hunting regulations.
Store these shells in a cool, dry place in the original box so the lot number stays with the ammunition. Before hunting, confirm point of impact at 25 yards with the same lot you plan to carry, since a light slug can print differently than birdshot patterns suggest.
A simple set of sights or a small red dot on a .410 makes aiming a slug far easier than a single bead, and a steady rest at the range will show what your barrel and this load can really do. Clean the bore between sessions for the most consistent results.
Browse the MAG5 Firearms ammunition selection for more shotgun loads, and visit Brenneke USA for full product details.








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