Well I'm joining in on a mold GB, my first mold and first foray into casting, but I still need to decide on how many cavities to go for.
I understand the 1-cavity concept, boolits as identical as possible concept, but why go for 4 and not spend the $7 more for 5 cavities?
Thanks
p.s. while I'm asking newbie questions, what does RF stand for, e.g. " TLC311-165-RF"?