Brenneke SL203M Magnum 20 Gauge 3" 1oz Hunting Slugs - 5 Rounds per Box
- Ounces:
- 1 oz
- Capacity-Rounds:
- 5
- Caliber-Gauge:
- 20 Gauge
- SHOT Size:
- Slug
The Brenneke SL203M Magnum 20 gauge hunting slug is a dedicated rifled slug load built for 3-inch magnum shotguns. If you're running a 20-gauge shotgun and need knockdown power for deer or hog hunting, these 1-ounce slugs deliver the mass and velocity that Brenneke has built its reputation on. Each box contains 5 rounds, so you're getting a practical quantity for sighting in, practice, or a hunting trip where every shot counts.
Brenneke has been engineering slugs since 1897, and their magnum loads are engineered for consistent performance in the field. The SL203M is purpose-built for 20-gauge magnum chambers, meaning you need the right shotgun to shoot them safely—this isn't a standard load that works in every 20-gauge. These are dense, no-nonsense ammunition for hunters who've chosen a magnum 20-gauge for a reason and want reliable terminal performance out to reasonable hunting distances.
Whether you're shooting over a blind, stalking through brush, or preparing for a fall season, having dependable slug ammunition on hand means you can focus on the hunt, not the gear. Brenneke slugs are the choice of hunters who understand that shotgun ammunition isn't commodity ammo—it's a critical part of a successful hunting season.
Key Features
- 3-inch magnum shotgun load for 20-gauge chambers
- 1-ounce slug weight for hunting application
- 5 rounds per box—practical quantity for sighting and field use
- Brenneke engineering and quality control
Specifications
| Gauge | 20 |
| Chamber Length | 3" |
| Slug Weight | 1 oz |
| Rounds per Box | 5 |
| Brand | Brenneke |
Frequently Asked Questions
Will these slugs work in my 20-gauge shotgun?
The SL203M is designed specifically for 20-gauge shotguns with 3-inch magnum chambers. Do not attempt to load them in 2.75-inch or 2-inch chambers. Always verify your shotgun's chamber length before purchasing.
What distance are these 20-gauge hunting slugs effective for?
We have only the load specifications provided. For detailed ballistics and effective range information, consult Brenneke's published performance data or contact the manufacturer directly.
What animals are these magnum slugs suitable for hunting?
The 1-ounce slug is a hunting load, but the specific game suitability depends on local regulations, shot placement, and your firearm's accuracy. Always check your state's hunting regulations for legal uses in your area.
Ammunition Restrictions:
You must be 18 years or older to purchase shotgun or rifle ammunition, and 21 years or older for handgun ammunition. All ammunition must be shipped via Domestic Ground, and shipping is not available for international residents. Residents of CA, DC, IL, MA, NY, CT, and NJ may be subject to additional restrictions. Always ensure you use the appropriate ammunition for your firearms, and check your state and local laws for any other relevant regulations on firearms and ammunition. Due to Department of Transportation regulations, returns on ammo cannot be accepted. Please verify local laws before placing an order.
We are unable to ship ammunition to the following:
- Hawaii
- Alaska
- P.O. Boxes
- APO/FPO Addresses
- International Addresses
- U.S. Territories
- U.S. addresses with zip codes starting with (100, 101, 102)
Illinois residents must provide a copy of a valid FOID Card or Valid Concealed Carry License, along with their IL driver’s license or IL state identification card to purchase ammunition. The ammunition can only be shipped to an address listed on either of those two documents.
Email: [email protected]

