OK, I found the print of the frame size forum thread from March 2007. I measured 16 gauge pin spacings as small as 1.00. The 1 1/8 spacing is normally a 12 gauge frame. I measured ten gauge sidecockers at 1 7/32 (enormous and a correction from the original post) and another at only 1 1/8. Another ten, a pivot lever automatic, is also on the big 1 7/32 pin separation frame. (this 1 7/32 is a correction from the original post) Without measuring an eight gauge, a very light ten in my collection, or a marked XX frame, I got four pin separations without leaving home. Another person who sent in measurements to the survey came up with four other measurements, but I am reluctant to share them because a couple were a bit off the wall. I don't know why I didn't measure the PS on my 7 1/4 pound fluid steel ten, but I will assume it is on the little frame with 1 1/8 pin separation. Patrick, I assume your gun is a light twelve.
