I use to make and sell 10 cavity bullet molds, about 20 molds every week for 5 years. I sold my last bullet mold in 1991.
I have 10 blank molds that I can machine to any caliber I want so I need to know the most popular caliber bullet so I can machine these last 10 molds.
I want these 10 molds to be a quick easy sell. 9mm, 10mm and 45 ACP to sell good.
I can hand cast 9mm 125 GN RN BB, 3200 bullets per hour using the RCBS lead melt pot.
Larger bullets like 45 ACP were slower about 2500 bullets per hour.
I already have tooling to cut 100s of bullets.
All the tooling is going to be for sale soon on ebay.