
Availability: In Stock
If you already own a MEC Super Sizer shotshell reloader, the Super Sizer Die Set Converter To 410 Bore lets you expand your reloading capability without buying a second press. This converter die set transforms your existing Super Sizer into a .410 bore reloading station, opening up a whole new world of handload options for .410 shooters. Whether you're loading for a vintage .410 shotgun, a modern defensive platform, or specialized hunting applications, having the flexibility to reload multiple gauges on a single press is a serious efficiency gain—and easier on the wallet than purchasing entirely separate equipment.
The MEC Super Sizer has earned a strong reputation among shotshell reloaders for reliability and consistency. By swapping in this dedicated .410 bore die set, you keep all your brass, components, and setup organized while maintaining the proven performance your Super Sizer delivers. Conversion die sets are a smart move for reloaders who want to experiment with different gauges or who shoot .410 regularly enough to justify the investment in dedicated tooling.
Installation and changeover are straightforward—no modifications to your press required. Keep your original die set in place for your primary gauge, and swap to the .410 converter when the mood strikes. It's a practical solution for serious hand loaders who refuse to be locked into a single bore.
| Product | Super Sizer Die Set Converter |
| Gauge | .410 Bore |
| Manufacturer | Mayville Engineering Company (MEC) |
| Compatibility | MEC Super Sizer Press |
Yes—the Super Sizer Die Set Converter To 410 Bore is designed specifically for MEC Super Sizer presses. No modifications to your existing equipment are required.
Yes. You'll swap out your current gauge's die set and install the .410 bore converter set when you want to reload .410 shotshells. Your original dies can remain stored and ready for future use.
MEC offers Super Sizer die set converters in 10, 12, 16, 20, 28 gauge and .410 bore. By collecting the die sets you need, a single Super Sizer press can reload all of these gauges—just swap the appropriate converter set for each gauge.
No. This is a die set converter only. You must already own an MEC Super Sizer press to use it. If you don't have a Super Sizer, you would need to purchase the press separately.

SKU: 200190835 • Width: 2.2in • Height: 2.15in • Depth: 6.3in • Weight: 0.525oz





Availability: In Stock
If you already own a MEC Super Sizer shotshell reloader, the Super Sizer Die Set Converter To 410 Bore lets you expand your reloading capability without buying a second press. This converter die set transforms your existing Super Sizer into a .410 bore reloading station, opening up a whole new world of handload options for .410 shooters. Whether you're loading for a vintage .410 shotgun, a modern defensive platform, or specialized hunting applications, having the flexibility to reload multiple gauges on a single press is a serious efficiency gain—and easier on the wallet than purchasing entirely separate equipment.
The MEC Super Sizer has earned a strong reputation among shotshell reloaders for reliability and consistency. By swapping in this dedicated .410 bore die set, you keep all your brass, components, and setup organized while maintaining the proven performance your Super Sizer delivers. Conversion die sets are a smart move for reloaders who want to experiment with different gauges or who shoot .410 regularly enough to justify the investment in dedicated tooling.
Installation and changeover are straightforward—no modifications to your press required. Keep your original die set in place for your primary gauge, and swap to the .410 converter when the mood strikes. It's a practical solution for serious hand loaders who refuse to be locked into a single bore.
| Product | Super Sizer Die Set Converter |
| Gauge | .410 Bore |
| Manufacturer | Mayville Engineering Company (MEC) |
| Compatibility | MEC Super Sizer Press |
Yes—the Super Sizer Die Set Converter To 410 Bore is designed specifically for MEC Super Sizer presses. No modifications to your existing equipment are required.
Yes. You'll swap out your current gauge's die set and install the .410 bore converter set when you want to reload .410 shotshells. Your original dies can remain stored and ready for future use.
MEC offers Super Sizer die set converters in 10, 12, 16, 20, 28 gauge and .410 bore. By collecting the die sets you need, a single Super Sizer press can reload all of these gauges—just swap the appropriate converter set for each gauge.
No. This is a die set converter only. You must already own an MEC Super Sizer press to use it. If you don't have a Super Sizer, you would need to purchase the press separately.
SKU: 200190835 • Width: 2.2in • Height: 2.15in • Depth: 6.3in • Weight: 0.525oz
