One would hope that purchasing at the Perezzi level would get you a reamer not on it's 649th tube, but, the only guarantee is death and taxes.

While we are on "minor improvements" Dr. Sane, lets forget, for a moment, the advancements in petrochemical engineering that gave us plastic hulls and wads-do 'ya think a turn-o-the-century P gun would have identical chamber dimensions to one produced, say, yesterday?

I think not. I've seen enough Winchester SX2s to know that the bore and choke dimensions aren't going to be identicle to your model 12.

Let's assume there is a reason for this. It's OK to admit you don't know why.

Best,
Ted