Working with rsterne (Bob’s Boat tails) on some Air rifle moulds We have come up with the following design 23″ Twist Post if you have any interest and will see what we can do.
This mold has my interest too. Leaning toward the 178 grain but will have to await field reports to know which will suit the gun better.
With either of these molds in a group buy is it any problem if the group wants to go to .358 or even .359 diameter? I’m fine with sizing a slug but it’s hard to get them to grow and there are those that use harder alloy. These specs are for pure lead to drop at .357 right?