dcan has the solution that's worked for me a number of times on problem
targets. Lock the trap down, get someone that actually knows what they're
doing coaching wise to help you work on it, ... then go and shoot a bunch ... not just 3 or 4, but a real "s*#t-load" of them till you can get consistant breaks, time & time again. When they stop looking like fast aspirins and start to look like big ol' garbage can lids, you're not going to miss too many.
Gun fit, gun mount, cheek on the stock, rushed swing, patterning, hold-points & eye dominance issues can all be worked out. But from 16 yards, station 3, with a gun that fits, and a choke that gives a nice, well distributed pattern that is maybe 60/40 ... "straightaways" should be almost a "gimme".
Nothing like shooting a few hundred to make it so ! ( That good coach should be able to tell you easily if you are over/under, stopping your gun, lifting your head or otherwise have developed some other form of "tic" that's making you shoot like crap. Remember, if it ain't working ... do something different ! ( Expressed otherwise: Doing the same thing, the same way, and expecting a different result = INSANITY ) Listen to your coach, don't be afraid to change, shoot lots and work it out !!!
PS: The attitutde " I can never hit the going away risers "
is non-productive. Be that little train that could: I think I can, I think I can, I KNOW I CAN !!!! Drop the " I can't" pronto.