21st Century - Primer Pocket Plug/O Rings Type:Rings These are common sizes that

These are common sizes that reloaders use to ream their cases just before seating bullets

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

Resistant to solvents

(#PH510) Gehmann Rear Iris - Adjustment range 0

21st Century - Primer Pocket Plug/O Rings Type:Rings These are common sizes thatWeighing 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.