It's a custom cut mold from Accurate Molds. You can specify diameter with your choice of alloy in mind when you order. If you want to look at the drawing click the link.
http://accuratemolds.com/bullet_deta...=48-380V-D.png
It's basically a Lee 325 grain WFN with a longer nose. It's OAL is 1.650" and you can find load data for that length/weight combo.