Good morning everyone. I recently picked up a 629 and want to put some ammo together. Loads will mainly be 240 grain cast boolits at about 1200. I bought a box of SmS cast to get me going until I figure out what mould to go with. So finally the actual question, the expander in the RCBS die set seems fairly small and ment for jacketed, so I plan to turn a better size for .431 cast boolits this weekend, but 44 mag is a new caliber and I don't know what neck tension is needed. I was thinking of making a .430 or .429 expander but I am not sure if that is enough tension. I feel as if I am over thinking this one, but figured I get some advise from those who have been there done that...so Thanks in advance!