I got these molds in a lot buy and only kept one mold from the lot the rest I have no use for. 6 molds total. Asking SOLD! shipped OBO in a small flat rate box.
5 of the molds have 332/RB stamped into them along with magma engr. Co. And May 1993 the bullet cavities measure 0.62+- diameter by 0.54+- deep.
The other just says APR. 97 magma eng. Co and measures 0.353 diameter and 0.38 deep.
PM your email for pics.