I just thought I'd throw out a positive review for Charlie because I'm very impressed with his product and service. I ordered a .30 caliber FC III on Sunday evening and he had it in the mail Monday morning. It arrived on Friday to me in Canada, which is pretty amazing.
Included was a sample of aluminum sheeting and a sample of gas checks made with the tool. The tool itself is great and has worked flawlessly in the little I've tried it. I'm going to machine up an adapter to make it work in my loading press, but it does work fine in a drill press so far.
Anyway, just thought I'd let everyone know that Charlie is great to deal with and anybody looking to make their own gas checks would be pleased with the FC III.