Patterned my M2 to check the pattern while sighting in the SBE. Temp was 57 degrees. Windy
Benelli M2 tactical 18.5" barrel, Rhino .660 choke, H13 2oz #7s. 42 yards from barrel to target.
20" pattern is approximate, as I only measured from center to North, South, East, and West outer edges.
222 in 10" circle 228 in 20" circle.
God Bless,
David B.