MBRITT:
sounds like you're having exactly the same problems i had with my trade gun. (54cal/28ga)
shooting low: problem was me. got to keep your head up and see a bit of the barrel. i started by shooting it like a rifle. WAY low! started lifting my head (like a proper gentleman , what??) and now it's another good grouse gun.
patterns: 2 heavy cards over powder, a spritz of moose milk/lube, 1 heavy card over shot.
tried 3f and it blew patterns. 2f started pulling it in, threw away cushion wads and i was good to go.
load more shot than powder. that'll tighten the pattern. my load? 1oz of 2f, 1 1/8oz of shot. that's pretty much a 16 gauge load & it's pretty good out of my gun.
in my double 12 ga flinter - 1 1/8oz 2f, 1 1/4 to 1 1/2oz shot. again dbl card, single card. gonna try it on ducks pretty soon.
shoot your gun lots, that's the best cure and the most fun.
all these little hints were passed onto me on this board when i posted the same problem about a year ago.
bending barrel is the LAST court of appeal. same with jug chokes.
funny how these game critters have gotten so smart they can find the holes in patterns. they couldn't in the 1800s. ::
all the above applys to round balls too. couldn't hit a kenworth at 30 yards last fall. now i can ... if it's not moving ::