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Screw in threaded bore.

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  • VegasND
    Calguns Addict
    • Aug 2007
    • 8621

    Screw in threaded bore.

    I posted a while back about a couple of Marlin/Glenfield .22 rifles I picked up that had belonged to Stembridge, a company that supplies guns for movies. One, a model 60, cleaned up real well. I put TechSites on it and it shoots great. The model 70 was filthy and the receiver was busted; I took it apart and sold the pieces. The barrel on the 70 was threaded inside the muzzle. After some questions in a thread here, I found out that a plug would be screwed into the bore to make the rifle function and feed with blanks.

    Today I walked into the same gunstore and made a deal on 2 more Marlins; a model 60 (missing the inner mag tube) and a model 70HC without a magazine. I knew of another gun store with an assortment of inner magazine tubes for $10 each. New these can cost $40. I found one that fits -- the follower is broken but it appears to function -- if you know where I can buy a replacement plastic Marlin .22 tube follower please let me know.

    The 70, again, has those threads. This time there's a special treat - something in the bore. With a bore light a little light got through but the bore seemed obstructed. A flashlight lit up a hexagon about an inch from the muzzle, an allen screw. A little work with a hex key and the obstruction was out. The bore cleaned up well despite the fact that it had probably not been cleaned after the last time it was used. I found a magazine in stock at Sportsman's Warehouse.

    The Model 70:

    The threaded muzzle:

    Removing the screw:

    The screw is out:

    There is a small hole drilled through the screw so some gas can escape out the muzzle.

    I'll try to get out tomorrow and see how it shoots. I suspect it will group okay because the threads are larger than the bore. If needed I'll counterbore it.
    People don't like to be meddled with. We tell them what to do, what to think, don't run, don't walk. We're in their homes and in their heads and we haven't the right. We're meddlesome.
    --River Tam
  • #2
    kcstott
    I need a LIFE!!
    • Nov 2011
    • 11796

    thats how they get semi autos to function on blanks

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