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Thread: Norinco JW15A 22 LR

  1. #16
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    If it doesn't settle, and the stock tension adjustment doesn't change things look at the barrel and crown. If it's dirty give it a good clean, sometimes .22's (and I know most people think don't clean rimfires) actually do get a layer of crap built up in them which can affect accuracy and there is always the possibility of a bit of rust building up over time due to combustion byproducts. Clean the action and bolt and breech faces including the extractor groove, and then check the crown for unevenness or nicks/damage. Sight mounts, make sure they are tight and can't move. Trigger assembly, had a couple of these that were loose as hell, and that's not ideal! And last one is check the barrel out for bore straightness and bulges, you might be able to feel bulges with a cleaning rod.

    Last one is suppressor, if it goes to the pack with the can on but is OK without it that's probably the cause - but it might not be the can itself as well. Might just not like having something hung on it's end!
    Rated M for Magnum likes this.

  2. #17
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    checking a JW-15 for "bore straightness" is a waste of time - the bore wanders considerably inside the barrel - just ask anyone who has ever shortened the barrel on one .

  3. #18
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    Is the trigger case hardened? I'm thinking of polishing the contact points, but if they're case hardened maybe that's a bad idea.

    Identify your target beyond all doubt because you never miss (right?) and I'll be missed.

  4. #19
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    Quote Originally Posted by No.3 View Post
    If it doesn't settle, and the stock tension adjustment doesn't change things look at the barrel and crown. If it's dirty give it a good clean, sometimes .22's (and I know most people think don't clean rimfires) actually do get a layer of crap built up in them which can affect accuracy and there is always the possibility of a bit of rust building up over time due to combustion byproducts. Clean the action and bolt and breech faces including the extractor groove, and then check the crown for unevenness or nicks/damage. Sight mounts, make sure they are tight and can't move. Trigger assembly, had a couple of these that were loose as hell, and that's not ideal! And last one is check the barrel out for bore straightness and bulges, you might be able to feel bulges with a cleaning rod.

    Last one is suppressor, if it goes to the pack with the can on but is OK without it that's probably the cause - but it might not be the can itself as well. Might just not like having something hung on it's end!
    I haven't tried with the suppressor off yet, it's on the list

    Shortening may be in it's future, it's still full length with the "iron sights" fitted.

  5. #20
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    Quote Originally Posted by sportco62 View Post
    checking a JW-15 for "bore straightness" is a waste of time - the bore wanders considerably inside the barrel - just ask anyone who has ever shortened the barrel on one .
    Well, it can be the difference between a passable barrel and one that you sell off to someone else to stress over...

  6. #21
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    this is a typical JW-15 barrel at about mid-point along the length of the tube . Cut off my wood stocked version that shoots CCI subs at way past minute of rabbit .

    Not trying to start a fight , but definately disagreeing with your above statement . sorry for the shitty phone pic.

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  7. #22
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    Even if it did shoot good it would annoy the shit out of me just knowing its off center
    Rated M for Magnum likes this.

  8. #23
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    My one was way off centre,lucky the gunsmith noticed it when threading for suppressor,still shot bloody well though..I have a spare wooden stock from my Brno 22 which I would say your jw15 action and barrel will drop straight into,pm me if you are keen.

  9. #24
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    Rated M for Magnum likes this.

  10. #25
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    I have found off centre bore makes no difference to accuracy with Norincos. One of my JWs had a 15" barrel, was well off centre, but still shot 0.4s (5 shot groups at 50m) at best with HV hunting ammos, and averaged in the 0.5s. About the same as our Brno and CZ452s on the bench. It shot 2-3000 bunnies very efficiently to 100m. Deadly wee shooter.

    M4Magnum - a suggestion - DON'T OVERTHINK THIS! Having polished/prepared 20 or so JWs its a simple process - never takes us much time but we do get excellent results from barrel chopping, recrown, safety polishing, trigger jobs, magazine prep etc. Beware of too much information - often leads to confusion.

    Many processes are dead simple - eg your JW15 trigger. We did one this afternoon on another JW project I'm finishing. It had a heavy two stage pig of a trigger break - hard, heavy, 4lbs or so, and no feel to it. Cobber and I did just a few simple things:
    * Removed action from stock, and tapped out keeper pin to remove trigger assembly from receiver.
    * Took out and hand-pressure tested the main spring - very heavy. He picks up a few spare springs from an occasional visit to Mitre 10 (they have a spring rack), so we picked another lighter spring of comparable size. Hand testing.
    * We then lightly polished the sear to give it even travel under bolt, and put a wee dot of grease on it.
    * We then removed the blog of epoxy sitting on top of grubscrew hole (on trigger rocker) above the wee screw, then adjusted it downwards to eliminate 2 stage, and dotted in some Locktite.

    We put this back together and now it really is perfect - a light single stage trigger at about 2lbs. Time spent 40 minutes, cost $3.00 Great little fix. Hope this helps somebody.

    These rifles are easy to work on, very easy to convert into polished efficient wee hunters. The JW15 is a scruffy Chinafied Brno model one. Provide the missing quality control, and you'll bring out the Brno DNA. They often have quite good barrels. Example - last one I sold couple months ago after some prep shot beautifully - 0.43" at best, average (3 groups) of 0.54" with old Aussie Powerpoint, 0.59" with old Mex Aguila Superextra etc. Great little performer - and that's with hunting ammos - not match ammo. Easy to do. And that's about average for ours. Suggestion - avoid getting confused with 68 opinions. And if you want some tips on this one send me a PM. Happy to help.

    PS I don't know if currently available Aguila Superextra is same recipe as 10 years ago. Then it was an excellent round - one of my 22s averaged well under 1" at 100 with it for consec groups. Had distinctive Eley rotten egg smell primer gel. Don't know about stuff today.
    Rated M for Magnum likes this.

  11. #26
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    Update time. I set the action torque to 15 inch pounds, filed and polished most of the machining marks out of the bolt, lubed the magazine spring, swapped out the trigger spring for a lighter one from Mitre 10 and tried a couple of different ammos.

    I managed to get out yesterday and throw some rounds down range.

    First was the CCI subs again. 4 into one cluster and a rushed shot to muck it up (the one in the bull)

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    Next was the Super extra from Aguila, pleasantly surprised by this. There are 6 in that cluster and two shots where I wasn't concentrating on my trigger pull off to the left.

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    I tried the Browning again and it was slightly better than last time out, just over an inch down from 1.7 last time. I didn't take a photo of this one, similar pattern to last time just tighter.

    Trigger needs some more work, will shorten the spring and adjust the grub screw to reduce travel. Once I tackle that, it'll be out on the field doing the business.
    davetapson likes this.

  12. #27
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    Mine will shoot the Eley subsonic hp stuff guncity has just as well as the cci standard

 

 

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