Our shell plates feature a subtle radius on each shell holder mouth to ensure smooth and reliable functioning. The retainer spring is designed to stay in place when inserting cases into the shell plate. Shell plates are designed to fit Lock-N-Load AP (both EZ-Ject and wire ejector models) and Pro-Jector presses.Genuine Hornady Lock-n-Load Shell Plate #16 by Sports South Designed for use with the Hornady Lock-n-Load AP and Classic reloading presses Allows for quick and easy caliber changeovers during reloading sessions Durable construction ensures long-lasting performance and reliability Perfect for reloaders looking to streamline their reloading process Compatible with a wide range of popular rifle and pistol cartridges