I make my own in numerous calibers. I bought Freechex II tools years ago; each cost a bit more than a box of GCs. Some GC bullets have small GC shanks---it is a bit of a challenge to make a GC that will fit tight on them. One"trick" is to use thicker aluminum stock, but it is tricky to find thicker stock and to remember which size for which cast bullet. I noticed in our mail all sorts of campaign flyers on heavy stock paper....so I placed some aluminum strip in my GC tool with a topping of the stock paper---it made a beautiful GC that fit superbly on the bullet shanks I have trouble fitting homemade GCs on---the Lyman 429215 is one that has been the most challeging. The aluminum stock I used was .008"...which is what I have the most of and the one that is easiest to work with. On some cast rifle bullets I had been using thicker aluminum stock----I found using a strip of stock regular paper is just right for the few that have a slightly "too small" GC shank.