Yes this was a Mihec group buy. You can also PM him on the website
www.castboolits.gunloads.com
Look under active group buys section. It was started by Zeus.
Here are the specs
This will be the official list for the 2 cavity Cramer HP mold for the 475 Linebaugh. This will be a plain base bullet that drops approximately 410 grains as a solid and 385 as a HP and drop as .478" in diameter. I would like to see an extra set of pins in case someone wants a slightly larger HP, both round and not a pentagon. So, the mold with two sets of pins, both round. It has crimp grooves located at .365 for the FA guns and .420 for the custom long cylindered guns. I'm thinking that the price will be about $110 shipped based off of previous buys but it should be in that ballpark. Sign up will last for 6 weeks. Please camoflauge your email as done below. The requested marked and "drop" diameter is listed in RED. Thanks
Ya'll know you really should join there too :)