Barrel has not been cleaned since before last turkey season 2010. Temperature was 57 degrees. Windy. 42 yards from end of barrel to target.
Please note, my forcing cone has been lengthened, and barrel ported. Barrel is 26 inches.
20" pattern is approximate, as I only measured from center to North, South, East, and West outer edges.
JH .655 295 in 10" circle 224 in 20" circle
Rhino .660 326 in 10" circle 195 in 20" circle
God Bless,
David B.