I bought a lightly used Xtrema 2 from a repected gun shop. I patterned it at 20, 30, and 40 yards with factory IC, M, and a Briely flush M, and a Kicks HF M. I used Remington HD, Winchester Xpert HV, Kent Faststeel, Heavy Metal and Estate shells all 3 1/2" BBs. Also used 3" Heavy Metal 2's and 3's, and 3" Remington steelshot 2's. Every shot pattern was to the left. Most of them were so left that there were little to no shot on the right half of a 30" circle. Is there anything I can do to make an adjustment? The pattern density itself looked pretty good with most shots; however, the pattern is just too far left. I love the gun, and feel that it fits me well. I've read a small amount about shimming for elevation changes. Is this something that I can do for "windage" adjustments, as well. If so, how do you do this? If not, do I need to get another gun? 
Thanks for any help you can provide.
Thanks for any help you can provide.
