Well guys I looked it up and it is a .582 And to be completely honest this is not the 40 yard pattern. This pattern was shot at 38 yards. I was done sighting in the red dot and she took a couple shots to see how she liked it. The reason for 38 yards is we just picked a spot and sat down(kinda like hunting) then measured the distance after the shot. Like I mentioned in another post when I was sighting in and patterning my turkey thug I had long stepped 40 yards and gotten way too far back. When I measured that distance it was 150 feet, so I do not have an actual 40 yard pattern for this gun.