A "proud" primer after firing
A protruding primer after firing has nothing to do with the shell holder. I understand reduce loads is a cute way to reload but it defeats the design. A protruding primer after firing has to do with the failure of the case head making contract with the bolt face when the case stretches between the case head and case body. I am the fan of cutting down on all that case travel.
Lee shell holders and shell holders that do not have a groove: I am beginning to think members of this forum believe the manufacturer forgot to cut the groove. I have shell holders that do not have groves, the manufacturer of my shell holders did not put a groove in 'ALL OF THEN' to protect me from myself.
F. Guffey