This Quick Change Jaw Assembly (S-Large) from Forster Products is a replacement assembly for the S/LS shell holder jaws used with compatible Co‑Ax presses. It supports and indexes cases by contacting the base of the cannelure and is designed for spring-loaded, self-acting operation. The assembly contains the components required to swap a single side of the shell holder jaws for the listed size range.
Key Specifications
- The assembly is designated S-Large for use with compatible S/LS shell holder jaws.
- Holds rim diameters of .468" to .562" to accommodate larger case sizes in the listed range.
- Compatible with the Forster Co-Ax Press when used with S jaws (see item FP02827 compatibility note).
- The jaws are spring-loaded to support the case by contacting the base of the cannelure for positive extraction.
- The jaws operate in a self-acting manner, opening and closing on cartridge placement and releasing when the handle is raised.
- The complete assembly includes replacement 10-24 x 5/8″ button head screws (part 028271-020) for installation.
- Designed to allow a single-side swap without disassembling the entire shell holder jaws to change sizes.
- An alternative for other calibers is the Shell Holder Adapter Plate, which does not permit a cartridge to float as the S/LS jaws do.
This Quick Change Jaw Assembly is a straightforward replacement and service item for reloaders using Forster S/LS shell holder jaws on compatible Co‑Ax presses. Its spring-loaded, self-acting design maintains case support during extraction and streamlines caliber or case-size changes by enabling single-side swaps. For reloaders who value efficient changeover and reliable case handling, the S-Large assembly provides the components needed to prepare the press for larger rim diameters within the specified range.
This description was generated with AI and may contain errors. Verify specifications and legal restrictions with the manufacturer before purchase. Provided “as-is” without warranties or guarantees.




