I posted this because [1] I'm currently manufacturing [2] about ten thousand .50 cal ball cores [3] daily [4].
Links:
[1] http://slackdaddy.org/jpg/50cal3.jpg
[2] http://slackdaddy.org/jpg/50cal2.jpg
[3] http://slackdaddy.org/jpg/50cal.jpg
[4] http://www.youtube.com/watch?v=uiiceyn-UjU