3-Die Carbide Roll Crimp Set - Group E - Straight Walled Cartridges

RCBS pioneered and developed 3-Die Sets for straight-wall rifle and pistol cases. The Carbide Sizer Die sizes the case and de-primes (the carbide sizer ring eliminates the need to lubricate). 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 roll crimps.

• Standard 7/8"-14 Thread
• Carbide Ring Sizing Die
• Proprietary Die Steel
• Set Includes Sizing Die, Expander Die, Bullet Seating Die
• All RCBS dies are machined to exacting tolerances, hardened and finished to the highest standards in the industry

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.

What is a carbide die?

• A carbide die uses a polished carbide sizing ring inside the die body to resize cartridge cases, which eliminates the need for case lubrication during sizing. RCBS carbide sizer dies are designed primarily for straight walled pistol cartridges, making reloading faster, cleaner, and more efficient while still sizing and depriming the case in one step. The carbide insert greatly reduces friction and wear, allowing cases to size smoothly without lube and helping streamline high volume pistol reloading.

More Questions? Refer to the RCBS Dies FAQ

Component and Caliber Reference Table