Took my Lyman Deerstalker apart to clean today, and when I went to put it together again a couple of hours later I could not get the wedge pin back in. It looks as if the stock has twisted or warped or something. I can push the barrel down against the stock but the stock is so twisted tho ramrod will not go in either. How is it possible for this to happen in such a short period of time. I never had a problem before, and the gun is always stored in the same place, so there isn't a moisture problem or anything. The gun is only a little over a year old. I hope somebody out their can help. Thanks