Description
Brass shotshells have a loyal following among reloaders who like doing things the old-fashioned way, and Magtech's 20 gauge hulls are about as good as it gets. These are solid brass 20 gauge cases measuring 2.45 inches, designed to drop into a 2-3/4 inch chamber. They arrive unprimed and ready to load, so you can tailor each shell to your gun and your preferred recipe. Magtech treats these as factory-fresh components, meaning they're held to the same standard as the loaded ammo the brand has been building for over 80 years.
What Makes These 20 Gauge Brass Hulls Worth It
The big draw is longevity. Plastic hulls get tired fast, especially under black powder, where petals can burn to a crisp after just a few firings. Brass sidesteps all that. With proper care these 20 gauge shotshells can be reloaded dozens of times, and it's not unusual to hear of folks running the same batch 20-plus cycles with no real wear. That kind of mileage is why they're popular for black powder hunting loads and anyone shooting older or classic 20 gauge guns.
Priming and Loading the Magtech Brass Shotshells
One thing to know going in: these hulls use a large pistol primer, not a 209 shotshell primer. Many reloaders seat the primer using a standard metallic press and the right shell holder. Magtech built these with cork, fiber, or cardboard wads in mind, and they shine with traditional black powder charges. A common tip from experienced loaders is to go up one gauge on your over-powder and over-shot cards for a snug fit, since the brass has a wider inside diameter than a plastic hull. An overshot card glued or sealed in place keeps everything where it belongs until the trigger breaks.
If you're chasing that smoky, old-school shooting experience or just want hulls that outlast everything in your reloading bench, this is the ticket. Pair them with your components of choice and you've got shells you can run season after season.
Key Specifications
- Manufacturer: Magtech Ammunition
- Manufacturer Part Number: SBR20
- UPC: 754908185511
- Caliber/Gauge: 20 Gauge
- Shell Length: 2.45 inches
- Chamber: 2-3/4 inch
- Material: Solid Brass
- Primer Type: Large Pistol Primer
- Condition: Unprimed, Ready to Load
- Color: Gold/Brass
- Quantity: 25
What’s Included
- 25 Magtech 20 gauge unprimed brass shotshell hulls
Frequently Asked Questions
What primer do these 20 gauge brass shotshells use?
These Magtech hulls are built for a large pistol primer, not a 209 shotshell primer. Most reloaders seat the primer with a standard metallic reloading press and the correct shell holder. It's a small difference from plastic hulls, but an important one to plan your components around.
Can the Magtech brass shotshells be reloaded with smokeless powder?
They're designed first and foremost for traditional black powder loads, which ignite easily and give reliable results. Some reloaders have worked up smokeless loads, but Magtech does not publish smokeless data for these, so that territory is best left to experienced handloaders who understand pressure. For most folks, black powder is the simplest and most dependable route.
How many times can I reuse these 20 gauge brass hulls?
That's the main appeal. With proper care brass hulls far outlast plastic, and many reloaders report getting dozens of firings out of a single batch. Annealing between loads helps extend their life even further if you're roll crimping.
What wads work best with these brass shotshells?
Magtech built these around cork, fiber, or cardboard wads. Because brass has a larger inside diameter than plastic, experienced loaders often step up one gauge on their over-powder and over-shot cards for a proper fit. Sealing the overshot card in place keeps your charge secure until firing.




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