21st Century - Primer Pocket Plug/O Rings Type:Rings 820 m/s) zeroed at a

820 m/s) zeroed at a distance of 100m

No adaptor needed and the attachments do not get out of line with the rod

You will need a K+M shellholder - click here and check the guide for your particular application

The spotter is also tripod adaptable

21st Century - Primer Pocket Plug/O Rings Type:Rings 820 m/s) zeroed at aWeighing is a technique used to sort cases based on volume. By plugging the primer pocket, the case can be set on a precise electronic scale, filled with water and weighed. Subtracting the weight of the case and the plug from this measurement gives us the weight of the water in the case (a direct indicator of volume, no math necessary here) and the sorting process can begin.