Each of my Pardners; 12, 16 & 20 ga. all shoot well with Federal Game loads (red box) and Remington Game loads. I only use #6 shot. When I miss, its usually my fault. It doesn't seem to make a difference between 7/8oz and 1oz shot, though. I mostly use 7/8oz in the 12 & 20 and 1oz in the 16 for forest game. I have a hard time finding 7/8oz in 16 ga. I'm not even sure they make 7/8oz in 16 ga, but now matter, the 1oz does fine.
EVOC ONE