Copper Creek Cartridge Co. Modified Cases have the primer pockets drilled and tapped to accept a Hornady (Stoney Point) OAL Gauge. These cases and gauges are handy for finding the length that a bullet needs to be loaded to get to the barrel lands.
Learn a little more about how these cases and gauges are used HERE
Choose the case you need from the drop-down menu, and if you don’t see what you’re looking for feel free to fill in the “other case” box.