
Availability: In Stock
The RCBS 3 Die Roll Crimp Set for .40-70 Sharps Straight is purpose-built for the black powder cartridge enthusiast who respects the original craft of reloading for straight-wall cases. Whether you're running an original 1874 Sharps rifle or a quality reproduction, this Legacy series die set gives you the precision and control needed to load ammunition that performs the way it should in rifles designed decades ago. Black powder cartridge shooting demands attention to detail—these dies are engineered to support that discipline.
The three-die configuration handles each critical stage of the reloading process for straight-wall cartridges. The Sizer Die reduces the case to standard dimensions and removes the spent primer in one operation, though you'll need to lubricate your cases before sizing. The Expander Die opens the case mouth to the correct diameter for bullet seating and creates the flare or bell necessary for reliable bullet feeding. Finally, the Seater Die positions the bullet to your specifications and applies a roll crimp that locks the bullet in place—essential for the chamber pressures and handling demands of black powder loads.
Built from steel and backed by RCBS's reputation for accuracy and durability, this die set is a solid choice if you're serious about .40-70 Sharps ammunition. The roll crimp design is particularly suited to straight-wall cartridges, where a traditional bullet grip is less practical. If you're loading for a legacy rifle, you'll appreciate equipment that understands the caliber's heritage and the shooter's needs.
| Caliber | .40-70 Sharps Straight |
| Die Style | Roll Crimp Set |
| Number of Dies | 3 |
| Material | Steel |
| Series | RCBS Legacy |
| Suitable For | Straight-wall cartridges |
Cases must be lubricated before running them through the Sizer Die. This protects both the case and the die during the sizing and decapping operation.
No. This die set is caliber-specific to the .40-70 Sharps Straight. If you're loading other black powder cartridges, you'll need a die set matched to that caliber.
A roll crimp curls the case mouth inward around the bullet, gripping it firmly—a design that works particularly well for straight-wall cartridges typical of black powder rifles. It's distinct from a taper crimp or conventional crimps used in other reloading applications.
These dies are part of the RCBS Legacy series and are engineered for both original black powder rifles and modern reproductions chambered in .40-70 Sharps Straight, such as Sharps-pattern falling-block rifles.

SKU: 167522150 • Width: 4.45in • Height: 1.75in • Depth: 6in • Weight: 1.9oz
Availability: In Stock
The RCBS 3 Die Roll Crimp Set for .40-70 Sharps Straight is purpose-built for the black powder cartridge enthusiast who respects the original craft of reloading for straight-wall cases. Whether you're running an original 1874 Sharps rifle or a quality reproduction, this Legacy series die set gives you the precision and control needed to load ammunition that performs the way it should in rifles designed decades ago. Black powder cartridge shooting demands attention to detail—these dies are engineered to support that discipline.
The three-die configuration handles each critical stage of the reloading process for straight-wall cartridges. The Sizer Die reduces the case to standard dimensions and removes the spent primer in one operation, though you'll need to lubricate your cases before sizing. The Expander Die opens the case mouth to the correct diameter for bullet seating and creates the flare or bell necessary for reliable bullet feeding. Finally, the Seater Die positions the bullet to your specifications and applies a roll crimp that locks the bullet in place—essential for the chamber pressures and handling demands of black powder loads.
Built from steel and backed by RCBS's reputation for accuracy and durability, this die set is a solid choice if you're serious about .40-70 Sharps ammunition. The roll crimp design is particularly suited to straight-wall cartridges, where a traditional bullet grip is less practical. If you're loading for a legacy rifle, you'll appreciate equipment that understands the caliber's heritage and the shooter's needs.
| Caliber | .40-70 Sharps Straight |
| Die Style | Roll Crimp Set |
| Number of Dies | 3 |
| Material | Steel |
| Series | RCBS Legacy |
| Suitable For | Straight-wall cartridges |
Cases must be lubricated before running them through the Sizer Die. This protects both the case and the die during the sizing and decapping operation.
No. This die set is caliber-specific to the .40-70 Sharps Straight. If you're loading other black powder cartridges, you'll need a die set matched to that caliber.
A roll crimp curls the case mouth inward around the bullet, gripping it firmly—a design that works particularly well for straight-wall cartridges typical of black powder rifles. It's distinct from a taper crimp or conventional crimps used in other reloading applications.
These dies are part of the RCBS Legacy series and are engineered for both original black powder rifles and modern reproductions chambered in .40-70 Sharps Straight, such as Sharps-pattern falling-block rifles.
SKU: 167522150 • Width: 4.45in • Height: 1.75in • Depth: 6in • Weight: 1.9oz
