I have a Springfield M1a Loaded with a Wilson NM heavy weight .308 stainless barrel, It also has a over sized NM walnut stock, I believe to be commercial not military. My question is how tight should the stock & Ferrel lock up to the front tentioner? I can squeeze the front stock and barrel shroud together and see about a 1/16 of an inch movement between the Ferrel and the tentioner. The front of the stock actually compresses to the barrel shroud. Is this normal or should it be tight with no movement ?