hi Perkis,, just thought i would jump in here ,, i am originaly from ohio,,it too is a slug state,, and my 870 and 1100 remingtons have put plenty of venison in the freezer over the years... as Lee has stated above try different brands of slugs to see which one the gun likes,, there will be a difference,,, my barrels seem to have a preferance for the remington sluggers 1oz.,,, although the 1100 will shoot winchester 1oz slugs pretty well too..... i like to set the guns up for 50 yrds. and if i need to shoot to 75yrds. i feel confident in making a shot like that.. my barrels are remington slug barrels with rifle sights,,,and both of these guns will group inside 3" at 50yrds. i have found too that the biggest reason for smoothbores to start slinging shots all over the place is that the barrel will lead up,,, and when that happens accuracy is out the window.... so get your self a good bronze brush and after you shoot the gun with slugs give it a good scrubing,,,one more thought,,, i like to put these gun on a bench and sand bags,,,i'm gona tell you right now that 870 is gona hurt you if you sit there and let it keep pounding the hell out of you.... spread it out over a few days,,, 4-5 shots today,,,, and wait a few days and do another 4-5 shots ,,with maybe a different brand,,, when you get her shootin for ya,,and you are looking down the barrel at a deer,,, you won't even notice the kick that's just some things i have learned over the years of smooth borein YMMV just my .02 good luck and git a bigun
ocharry