I have been using Fed. SP, SR, LP, LR primers for ove 30 years with absolutly no problems whatsoever. They are my primer of choice when top accuracy is desired. I hand prime using using the K&M priming tool, a Jerry Simmons Pope style re-decapping tool when loading the .25-21, or .25-25 Stevens, or for revolver ctgs., the top priming station on the Forester Co-Ax press.
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