If you use the gun solely as a a slug gun to hunt deer, go to your gun smith and get the barrel permanently mated to the frame. I did this with mine and it made a world of difference. Another thing you could do is get the trigger smoothed up a bit or replaced. As others have said, you've tried many different slugs through it, right? Different guns shoot better with different loads. With quality slugs starting about about $2.00 a piece, I'd want the most accurate I could find without breaking the bank. My gun likes Hornandy SST's, but who knows what flavor yours will lean towards.
