The 3-Die Taper Crimp Set is for loading straight-wall cartridges. Its steel Sizer Die sizes the case and de-primes. The Expander Die expands the case to the proper diameter to accept the bullet, and it imparts case mouth flare/bell for bullet feeding. The Seater Die seats the bullet and taper crimps.
- Features a hardened steel Sizer Die (case lubrication required)
- Expander Die to properly expand case to accept bullets
- Taper Crimp Seat Die for proper cartridge headspacing
- Standard 7/8"-14 Thread
- Proprietary Die Steel
FAQ
What's a taper crimp? What's a roll crimp? How are they different?
- A taper crimp gently straightens the case mouth to remove flare, making it ideal for semi-automatic pistol cartridges that headspace on the case mouth, like 9mm and .45 ACP. A roll crimp turns the case mouth into a bullet’s cannelure to firmly lock it in place, which is best for revolver cartridges that headspace on the rim and experience heavier recoil. RCBS typically offers one crimp style or the other for a given cartridge, however some cartridges such as 357 Mag/38 Special are offered in both roll and taper crimp.
More Questions? Refer to the RCBS Dies FAQ
- Manual:
- Download Manual
WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.p65warnings.ca.gov.
