Hornady Shellholder #10 (357 Sig, 40 S&W, 10mm Auto).
Precision machined from solid steel then heat treated to perform flawlessly for the life of the press. They fit all other Hornady accessories including the Hornady Cam-Lock Case Trimmer and Hand-Held Priming Tool. These shellholders will also fit the presses of most other brands in the industry. Hornady item # 390550
WARNING: This product contains chemicals 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.