Range update after firings both guns off a sandbag with the target at 15 yards:
The Mears, using 2 rounds of ARMAUSA (1 oz #7.5's @ 1170) delivered consistent, centered patterns, which suggests that the lack of drop at the comb and heel is at fault. (Or I am)
The Greener: 2 rds of Federal Top Gun (1 oz of #7.5's. I didn't have the box to determine muzzle velocity, but I'm guessing about 1200 fps)) patterned down around 4:30 on the target; 2 rounds of Fiocchi (1 oz #8's @1250) hit dead center with the wad punching a hole about 3" to the right of the charge. I ordered a case of Fiocchi 1 oz #8's @1250. I'll see how that works.
