Try the shortest primer you can find and the o-rings from McMasters. Euro primers are shorter but they are fatter. (Cheddite, Nobel, Fioochi ect) They fit the CVAs fine. The o-rings last around 20 shots or more. The CVA shims are a permanent solution and very simple to install.
Be warned though once you set head space for a shorter primer like the CCI, a Win209 might go off just closing the action so be careful using shims.
Last edited by Gm54-120; 10-03-2016 at 06:22 AM.