Phil,

I have not measured the chambers but I will before I go any further toward buying this gun. I like to shoot low pressure loads because they do not kick in my 2 frame Parker and they are very efficient killing doves. I am trying to figure why someone would buy such a large frame 12 gauge if not for shooting heavy loads. I am not familiar with 1917 shotshell offerings. I would like to shoot some kind of factory field load safely to justify my purchase. Asa