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Thread: Norinco JW15A 22 LR

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  1. #11
    Member
    Join Date
    Dec 2011
    Location
    Christchurch
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    1,928
    Bugger - team out bunny shooting tonight - they'll pop 50-100 and I'm not with them So - time for some basic thoughts for your JW accurising:

    * When you begin to tighten the front king screw or bedding screw, ensure first you are holding barrel in centre of barrel channel as you do so. Avoids side channel contact and uneven barrel pressures. (You don't need to free float sporter 22s - test them thoroughly first. Floating sometimes works - at other times you're left trying to recreate barrel pressures.. True.)
    * 25lbs is alot of torque. Max pressure is not necessarily max accuracy. Start alot lower - maybe 5-10lbs, then shoot two groups, then 15, another two groups (one group can be random), until you find its torque sweet spot. This varies between rifles.
    * Don't worry about synthetic forestock flex. This only happens when you apply lateral stock pressure with forearm, and this is something you do not want. Whether standing freehand, sitting, prone, or off the bench, principal job of forestock hand is to cradle rifle steadily - with at times perhaps just a tad of pressure back into shoulder. If you are pressuring forestock laterally enough to bend it slightly you are creating unwanted barrel pressures - wrong positional pressures - and what you impose at forend of rifle has to be offset at butt end of rifle. You don't want any distorting pressures. Don't worry about possible bends to forestock - just get your front and rear positional pressures onto rifle dead right with firm steady secure grip with pressure into shoulder and cheekweld, but no compensating for uneven hold pressure anywhere. Reducing variables helps consistent accuracy...Single good group may win a shoot-off, but it'll never get us there. Positional pressure balance.

    For your accuracy - given reasonably calm conditions - three significant variables:
    * The rifle - you're finding out its capability as you test. Accuracy varies with any make. JWs usually around 0.4" at best - worst I tested was about 1". Yes a Polytech or GC one.
    * The ammo - alot of present hunting ammos are poor. Keep trying makes - sometimes we test 10-20 types. JWs usually like one or more of the older higher quality hunting ammos eg Aussie Powerpoint, Mexican made Fiocchi, Mexican made Aguila Superextra, and CCI. If not having much luck try and find some of this. Remember its an accurate hunting round you need to shoot in rifle - we don't use match ammos in field. Not alot of difference with quality hunting ammos between HV and Subs for 50 and 100m groups - for standard barrel sporters. Match subs of course better - usually.
    * You - if you're an experienced past/present competition shooter, or spend regular time on the range, you may well get the best from your JW. But if you don't do this, do limit your expectations. Once you've found its preferred ammo, time and range practice are needed to get best from rifle - and you. And the rest of us.

    Hope this might help.. Cheers mudz (Note - others may have slightly different positional balance ideas to mine.)
    Last edited by mudgripz; 16-11-2023 at 11:20 PM.
    Trout, Ranger 888, kukuwai and 2 others like this.

 

 

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