IIRC, the Lee Internet site has up-to-date the checklist about which primers are ok to implement. They now appear to one out FEDERAL exclusively: I do have two revolvers that often misfire on the primary strike on double action with CCI primers, and both are 100% with Federal primers. Federal https://kameronzobny.theideasblog.com/32306536/detailed-notes-on-210-federal-primers-for-sale