It isn't quite that simple Ted.
Both barrels should shoot to the same place. I am aware of a Garbi that required eccentric choke grinding to achieve this and a Beretta that shot the left barrel 8" left and low that somehow was within factory specifications.
The issue defeated Sturm Ruger entirely. They got out of the SxS business way quicker than they got into it.
William Larkin Moore says this about a product they import and sell:
"All Rizzini B. guns have special steel barrels which are proof-tested at 1200 Bars, as well as pattern-tested at the factory."
I wonder if they actually do. John says no.
