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Winchester M70 Trigger Adjustment

Discussion in 'Gunsmithing and Repairs' started by Jaywalker, Oct 13, 2003.

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  1. Jaywalker

    Jaywalker Member

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    I found the following description of the way a gunsmith would adjust a Winchester M70 trigger and have a couple of questions:
    Of course, I plan to follow his advice and take the rifle to a gunsmith, but I was just wondering what else the 'smith might do. Would he, for instance, have to do anything other than "just pull hard" to get the action out of the stock and away from the melted stuff around the screw? Would he Loc-Tite Blue the screws when he was finished? Also, would he have to have special wrenches to fit the trigger screws?

    Jaywalker
     
  2. Jim K

    Jim K Member

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    "Melted stuff around the screw"? Has the rifle been glass bedded? If so and it was done right, the action should still come out of the stock with little problem. If glass bedding is done wrong, you take the stock off with a hatchet.

    On the trigger, just adjusting spring tension is usually enough to give a trigger pull that will satisfy most people. But in the "good old days" BAFL (before all the f*** lawyers) I also stoned the trigger engagement to give a pull of around 2.5 pounds, a figure that could not be reached by just changing the adjustments. This is tricky, though, and mostly not reversible. So if you, or your gunsmith, gets too happy with a stone, new parts may be needed.

    Jim
     
  3. Jaywalker

    Jaywalker Member

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    Thanks. I thought the M70 recoil lug had a factory-applied thermoplastic compound added as bedding support. Not so?

    Jaywalker
     
  4. Jaywalker

    Jaywalker Member

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    There was a little plastic/glass in the bedding, but not enough to interfere with removing the action from the stock. Special tools were not necessary, though you'd certainly need a narrow wrench if you wanted to move the two nuts separately. Otherwise, a moderate-sized adjustable wrench works okay. I could see no place that needed Loc-Tite.

    I can see that anything further takes more knowledge, but a pull weight adjustment is simple. This M70 is now at a shade over four pounds and bumping the stock on the floor checks that it's safe. The trigger's much improved. It has no noticeable overtravel. There's a bit of creep that won't bother me hunting, and I can't see shooting a 300 Win Mag too often off of the bench, so maybe I'm done.

    In the "For What It's Worth" category, there are three bolts securing the action and stock. When those bolts are removed, one notes that the one on the right is shorter than the other two. When reinstalling the short screw, one notes that it no longer reaches the threads in the action. One wonders about this for awhile, then one reverses the rifle and discovers that now all of the bolts reach their homes. ;)

    Jaywalker
     
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