Daryl---Thanks for the correction. .730 is correct. My number is fat.

I would hope a factory made double barreled slug gun would be made to regulate at 50 or 60 meters or even 100 meters. The gun I'm getting is an Italian made so I suspect Fiocchi's were used to regulate it. I ordered some along with 3 other brands and ball/slug sizes... Daryl I took your advice and went with as large diameter as I could get given the barrels are spec'd out at Cylinder/Cylinder... Although this is my first Italian gun and I've heard it said that European choke sizes tend to run tighter than makers on this side of the pond.