Yes - pure lead 93x64. I then set them up on their nose and spray with Lyman's (ran out of MS Moly) bullet spray moly coating.
It isn't supposed to be necessary, but I figure it might give a few fps higher speed & certainly prevent leading.
I started out with a double cavity mould, one flat nose, the other adjustable HP. I sold that one to a friend and I bought the 4-cavity mould. It's a bit faster casting and doesn't overheat
The moulds are Bob Sterne's (BC Canadian) designs at NOE.

http://noebulletmolds.com/NV/index.php?cPath=554&osCsid=gp6vrc6iseudhotv53tqpegm92

They are making other sizes as well. I think the 4-cavity mould was on sale - $94.00 US. Beautiful moulds, too, in aluminum. They are WAY ahead of Lee moulds. Quality and precision.