Years back I acquired a #357466 single cavity in a trade deal. I also couldn`t get a load to kjeep a cylinder full from my K 14 on the side of a barn! I had heard this was a finicky mold to use and to try top loads from a manual. Well it still was odd so I sent it off to `Buckshot` for a HP job that he did, not anymore though. That made the difference in where the boolits wanted to roost, the boolets weighed now in the mid 150`s range.Robert