I appreciate your quick help guys.. Walked into a show yesterday, and the first thing I saw was that dot 43. As the guy pulled it down he said the words "all matching" and "450" in the same sentence.. When I started the thread I was standing with the gun with a line of guys behind me wanting to see it, so I had to make a quick decision.. The bands were stamped, and the numbers were filed off, which I hadnt noticed until after I posted the original question.. I'm not as much of a pro as some, but some of the s/n's didnt look right to me... The whole gun rubbed me wrong.. I had to pass on it..