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    Berg83's Avatar
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    Question No4Mk1 Washers and Bushing

    Hey guys,

    First time on the forum as a contributor, long time lurker.
    I've got a 1943 BSA No4 Mk1, which has been converted into a repro sniper, complete with No.32 scope. Accuracy started off great after it came back from the smith, but has degraded noticeably of late.

    Deciding the accuracy was no longer a shooter problem and had to be something going on with the rifle, I pulled it down over the weekend. I found a few things, including a buttstock fit to the wrist that was rather loose; I suspect this is the core issue. I've subsequently gone and bought a bottle of linseed oilicon from a local art store (as recommended on here), and have begun re-oiling the stock and will build up the buttstock with paper shims to get a better fit soon. What I have noticed however is that some parts that should be there (according to a No4 schematic) don't appear to exist.

    These parts are:
    • Front Guard Screw Lock Washer
    • Front Guard Screw Bushing
    • Buttstock Bolt Leather Washer
    • Buttstock Bolt Lock Washer

    Now; the first three I'm certain aren't there, the Buttstock Lock Washer, I need to do some investigation to make sure it isn't embedded into the stock, but from first examination, I can't see it.

    My question for the gurus here; are 'Front Guard Screw Bushings' on all No4 Mk1's? I notice varying schematics, some show it, others don't. So I'm a bit confused. Below are two schematics, both for No4Mk1's, one shows the bushing the other doesn't. I guess the other question is; are these important in terms of accuracy? My instincts for accuracy is that if the bolt has more surface area laterally on the lower for-end, it's gotta help, but I could be wrong.

    This one shows bushing:



    This one doesn't:


    And here's my toy:
    Information
    Warning: This is a relatively older thread
    This discussion is older than 360 days. Some information contained in it may no longer be current.
    Last edited by Berg83; 04-29-2014 at 12:58 AM.

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