I have been looking at some of the Swiss Lugers for sale and they really are interesting. Some of the listings don't say what caliber they are in, and some say they are 7.63mm or 7.65mm (I forget which). I am wondering if any of these Swiss Lugers were made in the 9mm parabellum caliber? If the answer is "No" then I am wondering if the other caliber of ammunition is more expensive to obtain? Thanks to anyone who can "educate" me on this. Ron