RCBS 3-Die Taper Crimp Set – 450 Bushmaster

Description

The RCBS 3-Die Taper Crimp Set for .450 Bushmaster is a purpose-built reloading die set designed to produce consistent seating and crimping for straight-wall cartridges. The set includes a Sizer Die with decapping unit, an Expander Die for belling the case mouth, and a Seater Die that applies a taper crimp during bullet seating. These dies use a non-carbide, hardened steel Sizer Die, so cases must be lubricated prior to sizing. A green plastic storage box is included for organization; shellholders are sold separately.

Key Specifications

• The set is a 3-die configuration including Sizer, Expander, and Seater dies.
• Designed for .450 Bushmaster cartridges.
• Features a hardened steel Sizer Die; case lubrication required due to non-carbide construction.
• The Expander Die creates a belling/flaring of the case mouth to aid bullet seating and feeding.
• The Seater Die applies a taper crimp for consistent cartridge dimensions.
• Comes packaged in a green plastic storage box for organization and transport.
• Shellholders are sold separately and are required for proper operation.
• Backed by RCBS’ Lifetime Guarantee.
• Dies are machined to exacting tolerances and finished for durability.
• Manufacturer lists the set weight as 1.6.

Built for reloaders who value repeatability and straightforward function, this RCBS 3-die taper crimp set provides the core tools needed to prepare .450 Bushmaster cases with reliable seating and crimping. Its hardened steel construction and precise machining make it a practical choice for those handloading straight-wall cartridges and seeking consistent, serviceable dies for regular use.