looks like another of my guns likes the ssx and hevi13 7's combo.....
mossberg 500, truglo ssx, hevi13 3-2-7 and just for giggles threw in a couple nitro h378 4x5x7 patterns. all shot at a ranged 40 with bbl behind the line.
sorry for the wrong size circles but all that I had was a tin pie plate that later (after I drew the circles) turned out to be a 9"er. I semi hand drew the 18" circle so in the hevi pattern the FURTHEST part of the circle is max 16.5, in the nitro patterns 17 is the MAX distance between any two points. Not bad numbers IMO with that in mind.
9"= 213
16.5" = 153
366 total
good 40 yard killing pattern
nitro through mossy and ssx chokes