I am sure the diagnosis by those above that this is a head space adjustment is correct. Instead of shooting the harder stations you have been missing, shoot stations where you can get your confidence back. And I suspect after missing you started concentrating on seeing the muzzle to line up a nice lead picture - certain failure. Probably made worse by the double muzzle versus the single on your pumpgun. Go to the swing through method, just focus on the leading edge and let it happen for a while. Don't stand there and drill in a failing method either. Move around the field and shoot with a squad so you aren't standing up there grinding your teeth shot after shot. Use the force Luke!!
