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12mm Pinfire Cartridge
| Size: 12mm Headstamp: U Manufacturer: UMC - Union Metallic Cartridge Company - Bridgeport, Connecticut, United States Additional Info: This variation has an odd round ball for the bullet. It may have been reloaded. Notice the difference on the pin on this and the other similar variation compared to the rest of the UMC pinfire cartridges. |
