I have both SS pins and the small and large ceramic wet drum cleaning systems but I do not use them for the small rifle cases like 22 Hornet and 25-20 WCF due to the media filling and sticking in the cases. Boy!!! you only have to do that once to learn!
I have been using the older walnut system to clean these small rifle cases but it leaves red cases that are not truly clean like the ceramic cleans larger(er) straight wall cases.
What is the word on cleaning these little guys - ultrasound? Something else?