Interesting Winchester 'Problem'
Not really a problem, however, recently one box of 100 in a 5,000 case was empty. Completely empty. First and only time this has happened with any brand.
Sent them an email with the codes information and have received no acknowledgement. Not looking for anything from them, but thought that they'd like to know.
Other then that, they are my preferred brand of primers, but I will use others when prices are advantageous. Actually, I have never found a significant difference from brand to brand.