ORIGINAL: JW!
For both tops is 40 yards.......but you need to pattern with a good target that has the skeletal diagram. Count the pellets holes at 20, 30, 40......I go by 8 to 12 pellet holes that clearly hit the spine, the brain, the eye and nothing else.
Personally - not picking on anybody........but shots taken beyond that range is not what this sport is about.......call them up close and personal....ya will never woound one...for the number of birds I have taken....I can honestly say my aveage is 21 paces from where I sat.
JW
THAT'S THE WAY TO CALL IT, YOU SAID RIGHT....RH