John, I never tried it. But if you do, be sure and post your results. I'd sure be interested in what happens. I just ordered some sub bases and some 410 Great Plains Conicals I want to try out of my Black Diamond XR. I also want to try the sub bases on a couple other loads.

If this idea you are talking about works, it could sure save a bunch of money, and I for one am always in favor of saving a bunch of money...