chokes
#2
Nontypical Buck
Join Date: Feb 2003
Location: west central wi USA
Posts: 2,242
The number is the actual inside diameter of the choke tube at it's smallest. I think 12 gauge is about .72 dia. It indicates how tight the choke is. .665 is a common diameter for a 12 gauge turkey gun choke shooting lead. For heavi-shot you want something a little more open.