The RCBS 3-Die Roll Crimp Set from the Legacy series supports historic metallic black powder cartridges, specifically the .45-120-3 1/4 Sharps. This three-die set is intended for loading straight-wall cartridges and follows traditional reloading steps for case sizing, mouth expansion, bullet seating, and roll crimping. The Sizer Die sizes the case and de-primes; the Expander Die prepares the case mouth to accept the bullet and imparts a flare for feeding; the Seater Die seats the bullet and applies a roll crimp. Cases must be lubricated prior to sizing.
Key Specifications
- The set includes three dies: Sizer, Expander, and Seater.
- Designed for .45-120-3 1/4 Sharps straight-wall black powder cartridges.
- The Sizer Die is made of steel and sizes the case and de-primes.
- The Expander Die creates case mouth flare/bell to accept the bullet.
- The Seater Die seats the bullet and performs a roll crimp.
- Intended for straight-wall cartridges.
- Cases must be lubricated before sizing.
- Part of RCBS Legacy series for metallic black powder cartridges.
- Category: Gunsmithing Tools & Gunsmith Supplies.
- Listed weight: 2.05.
The RCBS Legacy 3-Die Roll Crimp Set provides the core dies and functions needed for preparing and reloading .45-120-3 1/4 Sharps straight-wall cases, following established practices for safe, repeatable seating and crimping. It is a practical choice for shooters and reloaders working with historic black powder cartridges who require straightforward, workmanlike tools built to RCBS standards.









