I have been using my 310 tool for a while to make Cast loads for my 30-06's. Its a ton of fun and the loads turn out great. A few weeks back i picked up a box of assorted cast bullet equipment at an estate sale. When i got it home and started cleaning everything up, i discovered a couple sets of bullet sizing dies for a 310 tool. After testing it out on plane based bullets i attempted to have it seat a gas check and size at the same time. I placed a CG on the end of an un-lubed and un-sized bullet and I could not make it work. Am i doing something wrong or was this tool never meant to do that kind of thing.