Battle,
If the stock "hangs" between the upper and lower tang you will likely have to straighten the lower tang.If the gun in question uses a through bolt then the trigger guard can be straightened. Unless you using the gun for a pry bar, club or fall down a lot the length does not matter that much and is mostly cosmetic.
Place a straight edge from the toe of the stock to the lower head where it meets the action. If the bottom edge of the stock does not follow the straight edge, imaginary, through the pistol grip, DO NOT proceed. You will end up with a very strange "crook" in the stock's lower line. You can back yourself out of this too, but it is a -itch. I will assume that the stock fits you in other respects, If so the top tang is OK. Yeti explained that portion well.
Hunt
