I was given a couple of Hoch Moulds
G2742 317 140 1 lube groove.... I would assume that the G number is an order identifier. 317 for the dia and 140 for wieght? What was this mould for?

G2743 460 530 2 lube grooves... This mould I assume for .45-70 etc. Smokeless bullet design with only two lube grooves?

Any input appreciated Thank you.