RCBS 19108 Roll Crimp 3-Die Set for 45 Colt (LC) - Group B
$76.25
$77.99
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- Type:
- 3-Die Set
- Caliber-Gauge:
- 45 Colt (LC)
- Die Type:
- Sizer/Expander/Seater
- In Set:
- 3
The RCBS 19108 Roll Crimp 3-Die Set for 45 Colt (LC) is purpose-built for handloaders who want reliable ammunition at the bench. This is a complete die set designed specifically for straight-wall cartridges like the 45 Colt, giving you everything you need to move cases through sizing, expansion, bullet seating, and crimping in a logical, efficient sequence. Whether you're loading for a classic revolver or modern lever gun, this set delivers the precision straight-wall reloading demands.
The three-die configuration starts with a steel Sizer Die that sizes your cases back to specification and removes the spent primer in one operation—just remember that 45 Colt cases need to be lubricated before sizing to protect both your brass and your dies. The Expander Die then opens the case mouth to the right diameter for bullet insertion and applies a controlled case mouth flare (or bell) that ensures smooth bullet feeding and helps seat bullets concentrically. The final step is handled by the Seater Die, which both seats your bullet to the correct depth and applies a roll crimp to lock the bullet in place for reliable cylinder performance.
RCBS has been the standard for reloading dies since 1956, and this Group B die set reflects that heritage—solid engineering without unnecessary complexity. If you're new to 45 Colt reloading or you're scaling up production, this set gives you a complete, matching system from a brand reloaders trust.
Key Features
- Complete 3-die set for 45 Colt straight-wall cartridges
- Steel Sizer Die removes spent primers while resizing cases
- Expander Die applies controlled case mouth flare for reliable bullet feeding
- Seater Die with integral roll crimp secures bullets and maintains pressure seal
- Cases require lubrication before sizing
Specifications
| Brand | RCBS |
| Model | 19108 |
| Caliber | 45 Colt (LC) |
| Die Count | 3 |
| Die Group | Group B |
| Cartridge Type | Straight-wall |
| Crimp Type | Roll Crimp |
Frequently Asked Questions
What dies are included in this set?
This RCBS 3-die set includes a Sizer Die (which also de-primes), an Expander Die, and a Seater Die with integral roll crimp. All three dies work together to process 45 Colt brass from start to finished ammunition.
Do I need to lubricate my 45 Colt cases before using this die set?
Yes. Cases must be lubricated before sizing with the Sizer Die to prevent damage to both the brass and the die.
What is the case mouth flare and why does the Expander Die apply it?
The Expander Die opens the case mouth to accept the bullet and applies a controlled flare (bell) that helps the bullet seat smoothly and concentrically, reducing feeding issues and ensuring consistent seating depth.
Is this set suitable for revolver ammunition?
Yes. The RCBS 19108 is designed for straight-wall 45 Colt cartridges and the roll crimp applied by the Seater Die is standard for revolver ammunition, locking the bullet in place for reliable cylinder performance.
