And for those comtemplating this, or other similar conversions, as regards the 'oversize factory chambers':
Get some 'cerro-safe' (sp?), I know, its kinda pricey, but you can reuse it forever, and do a chamber cast. With it properly done you can see, 3 dimensionally, your actual chamber, throat, and the leade portion of your rifling, and measure each, as needed. It can weed out those chambers ahead of time, and expense and dissapointment. What price would you put on that?