Chief, I have just not experienced the "unreliability" you speak of in quality old guns. As to fit, I dont buy them if they are radical, and in my opinion guys who fret over 1/4 inch of measurement cant shoot the guns that do fit them. Gamebore and RST are available even here in the wilds of NW Kansas, I buy RST's by the flat from RST...UPS hands em to me here at the ranch..It's 65 miles to the nearest Walmart....RE: Steel? What steel I shoot is through a CZ, bought special for that purpose or HORRORS! A semi auto .......