
Availability: In Stock
The RCBS 458 Win Mag Roll Crimp Reloading Dies Set is a three-die system built for reloaders who want a straightforward, reliable way to produce precision ammunition in this hard-hitting magnum caliber. Whether you're working up loads for a long-range hunt or fine-tuning match ammunition at the bench, this die set delivers the control you need to produce consistent, safe rounds. The roll crimp design is purpose-built for straight-wall cartridges and provides a mechanical lock that keeps bullets seated and crimped securely in place.
The set includes a sizer die that handles the heavy lifting: it resizes fired cases back to factory dimensions and removes spent primers in a single stroke. Because you're working with straight-wall brass, you'll need to lubricate your cases before sizing—a straightforward step that protects both your dies and ensures smooth operation. The expander die then opens the case mouth to the proper diameter, preparing it to accept your bullet while imparting a controlled flare or bell for reliable bullet feeding. Finally, the seater die does double duty: it seats your bullet to exact depth and applies the roll crimp simultaneously, eliminating the need for a separate crimping step and streamlining your reloading sequence.
RCBS dies are known for holding tight tolerances and wearing well over thousands of rounds. This three-die approach keeps your setup simple and your reloading bench efficient, letting you focus on what matters: producing ammunition that shoots consistently and safely.
| Caliber | 458 Win Mag |
| Die Type | Roll Crimp |
| Number of Dies | 3 |
| Cartridge Style | Straight-wall |
| Manufacturer | RCBS |
Yes. Cases must be lubricated before running them through the sizer die to protect both the die and ensure smooth operation.
The set includes a sizer die (which also de-primes), an expander die, and a seater die with roll crimp function. You'll have all three stations you need to complete a reloading cycle.
The seater die applies the roll crimp simultaneously as it seats the bullet, eliminating the need for a separate crimping operation and streamlining your reloading workflow.
Yes. The RCBS 458 Win Mag Roll Crimp die set is designed to handle straight-wall magnum cartridges and produce consistent, secure ammunition suitable for hunting and other applications.

SKU: 115718020 • Weight: 1.5oz





Availability: In Stock
The RCBS 458 Win Mag Roll Crimp Reloading Dies Set is a three-die system built for reloaders who want a straightforward, reliable way to produce precision ammunition in this hard-hitting magnum caliber. Whether you're working up loads for a long-range hunt or fine-tuning match ammunition at the bench, this die set delivers the control you need to produce consistent, safe rounds. The roll crimp design is purpose-built for straight-wall cartridges and provides a mechanical lock that keeps bullets seated and crimped securely in place.
The set includes a sizer die that handles the heavy lifting: it resizes fired cases back to factory dimensions and removes spent primers in a single stroke. Because you're working with straight-wall brass, you'll need to lubricate your cases before sizing—a straightforward step that protects both your dies and ensures smooth operation. The expander die then opens the case mouth to the proper diameter, preparing it to accept your bullet while imparting a controlled flare or bell for reliable bullet feeding. Finally, the seater die does double duty: it seats your bullet to exact depth and applies the roll crimp simultaneously, eliminating the need for a separate crimping step and streamlining your reloading sequence.
RCBS dies are known for holding tight tolerances and wearing well over thousands of rounds. This three-die approach keeps your setup simple and your reloading bench efficient, letting you focus on what matters: producing ammunition that shoots consistently and safely.
| Caliber | 458 Win Mag |
| Die Type | Roll Crimp |
| Number of Dies | 3 |
| Cartridge Style | Straight-wall |
| Manufacturer | RCBS |
Yes. Cases must be lubricated before running them through the sizer die to protect both the die and ensure smooth operation.
The set includes a sizer die (which also de-primes), an expander die, and a seater die with roll crimp function. You'll have all three stations you need to complete a reloading cycle.
The seater die applies the roll crimp simultaneously as it seats the bullet, eliminating the need for a separate crimping operation and streamlining your reloading workflow.
Yes. The RCBS 458 Win Mag Roll Crimp die set is designed to handle straight-wall magnum cartridges and produce consistent, secure ammunition suitable for hunting and other applications.
SKU: 115718020 • Weight: 1.5oz
