i thought i had my problems solved. I've got a knight master hunter that i've had for about 5 years. i've never had that great of accurcy with it. i've shot the barnes red hot 250, sbt 245, shockwave 250 superglide, 777 lose, AP loose, black box pellets, red box mags. i thought that i got it all sighted in great this summer. i doubled checked it yesterday and i was all over the place. no consistacy at all. will not hold a group at 100yds. i mean that is all over the place without touching my scope. low left, high right, low right. i don't understand how or why. everything is tight, stock, scope etc. why is this happening? what should i do? my season is next weekend. i'm half tempted to get a new gun. i clean the barrel after each shot.
also the blow back fouling is horible. i get a ton of residue coming back trough the breech plug, getting under my bolt gumming it up so bad that it's hard to close and this was after just 9 shots.