by humperdingle » Mon Dec 21, 2015 3:47 pm
Usually (!) The more notches, rings, asterixes, dots, or whatever other symbols are used, the more open the choke.
So... 1 = Full choke and 7 will = somewhere around skeet/cylinder.
For pigeons, i'd usually stick to half or 3/4 in my semi auto and keep shots around the 30 yard mark or under.