A couple years back I sprung for an Accurate Molds 160g 3 cavity in brass for my .308. It drops Lyman #2 right at .311 just like I asked for. I preheat it on my glass top range and it drops perfect boolits from the git go. It, along with my RCBS cast iron 250K mold are my favorites. The 3 cavity brass is a heavy mold though. I would order a 2 cavity in hindsight if I did it again.