How to Make Obsolete Ammo: Slugging & Chamber Casting Cartridges | 1867 Rolling Block First Shots

In this video, we tackle the single biggest hurdle facing antique firearm owners: safely and precisely creating custom ammunition for obsolete calibers. We use the incredibly rare 1867 Remington Rolling Block Pistol as our case study—a .50-caliber handgun with shootable survivors estimated to be only a few thousand to exist. This isn't about general reloading. It’s a technical deep dive into the two essential master techniques for custom cartridge creation that work for almost any vintage firearm, from pistols to military rifles. **🛠️ The Two Essential Techniques: * * **Slugging the Bore:* How to safely measure the true bore and groove diameter to ensure bullet-to-bore fit, which is critical for accuracy and safety. *Chamber Casting:* Creating an exact mold of your rifle’s chamber to determine the precise headspace and cartridge dimensions, which are now 150 years old and unique to your gun. By mastering these two techniques, you unlock the ability to accurately hand-load brass for any antique cartridge. Finally, we put our custom .50 caliber cartridges to the ultimate test! Watch as we take the 1867 Remington Rolling Block Pistol to the range for its first shots in perhaps a century, proving the success and safety of our custom-made ammunition. #RGSrestorations #AntiqueReloading #HandLoading #RollingBlock #ObsoleteCaliber #FirstShots #RangeDay #AntiqueFirearm Follow Us: https://www.rgsrestorations.com EDUCATIONAL & HISTORICAL NOTICE: This video documents the professional restoration and historical study of antique firearms. All activities are performed by a trained professional in a controlled environment following all local and federal laws. This content is intended for documentary and artistic purposes only. We do not provide instructions on the manufacture of firearms or ammunition, nor do we sell or link to the sale of firearms or regulated accessories. Do not attempt to replicate any activities shown.