I recently found and purchased some new Nosler 243 win brass. When I begin to prime them they were super tight and I wound up breaking my old lee priming tool, In an interest of not wasting primers , I called Nosler. Tech answered and said , ahh are you using Federal 210s, "Yes" .He said the primer pockets are made to minimum dimensions and federals are the biggest diameter primers , Try CCI primers. While on the line I primed a few easy peasy and I bid him Good Day. Nothing major But I would have wasted a few more being pigheaded and he cleared my mind and on I go.
