So I have been thinking about this for some time and after a lot of thinking and research I am going to do it. http://www.lonewolfdist.com/Detail.aspx?PROD=950&CAT=240 A while back someone gave me close to 1,000 rounds of .40SW once fired brass from a police shooting range. Well it's been sitting in my reloading zone for a while, and last night while I was punching out some 10mm rounds I got to thinking, I have everything I need except the primers (and I'll get those payday) to load these round up. And with the wife wanting to learn how to shoot AND the fact I have 1# of Hodgdon Titegroup (which I have found through Google is not a good choice for 10mm loads but great for .40SW) makes the idea more appealing. So I will load up some .40SW and get the after market barrel and have the best of both worlds. Since I have two 10mm's it's not a big deal for me to convert one over for the wife to practice with. That and I see it as a way to be able to get range time without using up my precious 10mm brass.