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Technical A Guide to Jsb pellet tin label meanings and what to look for

Discussion in 'Anything Airgun Related' started by Ganton Gunner, Sep 25, 2016.

  1. Ganton Gunner

    Ganton Gunner Super Moderator Staff Member Mod/Admin

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    here is a quick explanation to hopefully help :)
    below the label reads 46560015 7 4.52
    always work from the right on the main code
    1. the last 2 numbers indicate the year in this case 15 indicating 2015
    2. the 2 prior numbers indicate the quality control employee number 00 in this case
    3. the 2 numbers before that is the production line employee number 56 in this case
    4. the 2 before are the all important die number which on this tin is 46
    please note you always work from the right cos if you get to step 4 and only 1 number then that's the die number IE dies 1-9
    the 7 below would indicate the batch number
    and then finally the 4.52 is the claimed size


    in general the number that matters on JSB exacts it the Die number (please note there was some bad batches in 2015 on various dies)

    120200.jpg
     
  2. Jackroadkill

    Jackroadkill Donator

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    So, does this work for the AA (and other) pellets that JSB make, too?
     
  3. Ganton Gunner

    Ganton Gunner Super Moderator Staff Member Mod/Admin

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    no lol on a quick check the top line carries the die number as the 1st number will either be a 1 or 2 digit number and the full date after it

    in the picture below die 14 and then followed by day month and year of manufacture

    they do not provide the worker numbers as best as i can tell but same as JSB's the main thing is the die number

    [​IMG]
     
    Last edited: Sep 25, 2016
    The Robin and bob4026 like this.
  4. mr rooney

    mr rooney Busy Member

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    Thanks for that info! My 20 tins of .20 exacts all have the same die number 36 Half made in 2014 and the others from 2015. Both shoot beautifully. Not sure how long a die lasts before quality drops off?
     
  5. Ganton Gunner

    Ganton Gunner Super Moderator Staff Member Mod/Admin

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    unfortunately i am unable to answer how long a good die stays good :(
     
  6. stevemandm

    stevemandm Honorary Member

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    in a distant galaxy, far far away ....... actually
    on average, based on normal production runs, the dies will last for up to 5 years. when the quality drops outside jsb standards, the dies are moved onto the '1st external customer line', and when quality drops again on this set of dies, they are moved onto the 3rd line.
    basically jsb use the new dies for their 'own brand production', the 2nd rate ones for the premium external customer, and the 3rd rate ones for all others.
    once a set of dies is moved along the 'lines', it is replaced by a better set. also, the consistancy of the weight of the pellet can be controlled by the speed that the machinery is run at - the pellets for jsb premium range are run at a slower speed than the standard ones.
    the problem is, we dont know how long the dies have been running for, so ideally, if you get a good pellet, you need to buy as many as you possibly can (in theory, a good die set may be coming towards the end of its 'premium' life when you get a good tin).

    hope this explains the process
     
    PaulBB, The Robin, ThornyMark and 3 others like this.
  7. patpend

    patpend Member

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    excellent knowledge thank you!
     
  8. richardscar

    richardscar Donator

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    SUPERB Sticky , many thanks :)
     
  9. Trotts4

    Trotts4 Newbie

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    That's great advice thanks. I have two tins of .22 JSB Exact, Jumbo Heavy. The label on the back ends in 14 and starts 35. Thanks to you I now understand what this means.
    On the front of the tins is handwritten /16 in permanent ink. Do you have any ideas what this could mean? Cheers... Trotts4
     
  10. Ganton Gunner

    Ganton Gunner Super Moderator Staff Member Mod/Admin

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    that will just be a count off of tins i guess from a retailer or whole seller i.e. totting up on a order or delivery.
     
  11. donnk

    donnk Donator

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    is there a die number to avoid ?
     
  12. monsta41

    monsta41 Donator

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    its more to do with finding a die number that works in your particular barrel
     
    TheTurn likes this.
  13. 988396

    988396 Donator

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    Is there a guide for other pellets makers?
     
  14. Slipperneave

    Slipperneave Donator

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    Great guide usefull information thanks
     
  15. buckshot100

    buckshot100 Engaging Member

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    I'm going to make a note of that very useful info, thanks.
     
  16. Squintykid

    Squintykid Busy Member

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    very useful, I'm having a mare with 5.53 18 grain pellets.
    Had a good 2016 batch but now on a 2017 batch/die that is undersized.
    Catch 22, can't really afford to buy large amounts of pellets to stay in the zone but can't be doing with sampling batches and fliers when shooting at range.
    Will have to start requesting die numbers when I order.
     
  17. Shocker

    Shocker Engaging Member

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    Might be a silly question
    Is this pellet selection just for pcp or does it include springers
    Having had a hw77 since 83 and never found it to be pellet fussy
    But It does love copper point for hunting but I have never noticed flyers with it with any pellet and all seem to be accurate
    And recently after coming back into Airguns I found that pcps are reallly fussy on pellets
    Or is it my imagination that it’s just pcps
     
  18. monsta41

    monsta41 Donator

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    yes it matters in all guns
     
  19. JamieB57

    JamieB57 Busy Member

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    Does anyone knew which size JSB pellets would give the best velocity combined with accuracy in a newish .22 HW98? I realise that tighter pellets will be slower,and found Eley wasps 5.5mm losing 1ft lb over Crosman Accupell.I prefer the lighter pellets around 14 grains in non fac rifles.
     
  20. shergar

    shergar Posting Addict

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    Thanks for great post I now have 3000 JSB 15.89gr all from die 48 produced 2018. My gun likes them and at lest they should be consistent
     
    Ganton Gunner and monsta41 like this.

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