I can mount a shotgun ONE TIME and know whether it fits me. O/U, SxS, repeater, doesn't matter. I've also learned that what a gun measures does not always mean it will or won't fit, but it does most of the time.

I have a 32" flat rib Blaser F3 that measures 1 1/2" x 2" x 14 3/4", and EVERY TIME I mount it, I'm looking straight down the rib at the bead, flat , with no rib showing. It shoots where I look.

I also have a 32" DT-10 that measures 1 1/2" x 2 3/8" x 14 1/2", and EVERY TIME I mount it, I'm looking straight down the rib at the bead, flat, with no rib showing. It shoots where I look.

Go figure.
JR

Be strong, be of good courage.
God bless America, long live the Republic.