I was patterning another 20 gauge today. I have not counted up all the targets but I think this may be the best from today.
I shot around 10 rounds from various chokes - Carlson .575, Remington SF, Indian Creek .575, Tightwad .570, Jellyhead .570, and Undertaker .582.
Remington 870 20 gauge - 26" barrel
40 yards
Indian Creek .575
TSS 9's
1 5/8 oz.
One target is 312/216/40 and the other is 265/242/66.