RCBS 20904 3-Die Set for .45-70 Government Straight-Wall Cartridges

The RCBS 20904 3-Die Set is designed for reloading .45-70 Government straight-wall cartridges with the essential sizing, expanding, bullet-seating, and roll-crimping functions in one set. Built for dependable case preparation and cartridge assembly, this set provides a practical solution for reloaders who want consistent results from properly prepared brass. The included steel Sizer Die resizes the cartridge case and removes the spent primer during the sizing operation. Cases must be lubricated before sizing to help ensure smooth operation and reduce the risk of a case becoming stuck in the die.
The Expander Die prepares the case mouth for bullet seating by expanding the case to the appropriate diameter. It also creates a controlled mouth flare, or bell, to help guide the bullet into the case and support smooth feeding during assembly. Proper case preparation is important for maintaining consistent neck tension and reliable bullet seating. The die set is intended for use with compatible reloading presses and properly prepared .45-70 Government brass.
The Seater Die positions the bullet to the desired seating depth and applies a roll crimp to help secure the bullet in the case mouth. Together, the three dies provide the core operations needed for sizing, priming removal, case-mouth preparation, bullet seating, and crimping. The RCBS 20904 set is a focused choice for reloaders working with .45-70 Government ammunition and looking for durable steel dies from a recognized reloading equipment manufacturer. Always follow current RCBS instructions, cartridge-specific load data, and applicable safety procedures when using reloading equipment.

Features:

• Type: 3-die set for straight-wall cartridge reloading

• Caliber: .45-70 Government

• Die Type: Sizer, expander, and seater

• Sizer Die: Resizes the case and removes the spent primer

• Expander Die: Expands the case mouth and creates a bullet-feeding flare

• Seater Die: Seats the bullet and applies a roll crimp

• Case Preparation: Cases must be lubricated before sizing