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Question What difference does pellet size make?

Discussion in 'Anything Airgun Related' started by NJC3107, Sep 30, 2014.

  1. NJC3107

    NJC3107 Member

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    I am now going to show my ignorance. I was looking to buy some pellets and I noticed it said they come in two sizes....
    And I don't mean .177 or .22 :)

    So the sizes are 4.51mm or 4.52mm. What difference does this make?

    If this is relevant I want them for an HW 100.

    Neil
     
  2. DR2501

    DR2501 Donator

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    Different barrels (and magazines) like different sizes mate that's all. You'll have to test yours to find out.
     
  3. landymick

    landymick Very Active

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    As DR said,you need to try them to find which gives you the best result.
     
  4. Panther

    Panther Donator

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    I have an HW100 and it seeems to like JSB 4.51, I also have a Daystate panther and that likes JSB4.52, tried JSB 4.53 little too tight for my liking.
    Varies from gun to gun, its a matter of trial and error. started off with Air arms field in Panther used to get quite a few fliers, however air arms field in HW 100 OK.
    Make sure you check condition of pellet before you try it as damaged skirt can mislead. I would suggest single shot for testing, magazines can effect pellets.
     
  5. Jonnyovy

    Jonnyovy Pro Poster

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    Jsb 4.53 for my hw100
     
  6. bhodge

    bhodge Keyboard Hero

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    In my AA S400 it's 4.52 JSB Exacts, but my mate swears by 4.53 in his AA S410...
    It's just what you think performs best in your gun, any difference might be insignificant in many cases.
     
  7. Strewth !

    Strewth ! Engaging Member

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    I could never see how that 1/100th of a lead pellet could make that much difference to the accuracy of air guns. There must be some real fussy guns out there (or could it just be the shooters?) who knows for sure.
     
  8. NJC3107

    NJC3107 Member

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    Thank you all. Looks like it might be worth trying a test pack of mixed pellets....
     
  9. Ganton Gunner

    Ganton Gunner Super Duper Moderator Staff Member Mod/Admin

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    my ev2 likes jsb exact 4.53 resized to 4,52 :eek:
     
  10. Stevie Darling

    Stevie Darling Sexual tyrannosaurus

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    My rifle loves jsb exact express 5.52,

    But loves them even more when put through 5.52 sizer:confused:
     
  11. Harwich Shooter

    Harwich Shooter Donator

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    my HW100S loves defiant 8.5gr HFT pellets in 4.50. The Rabbits do not ;)
     
  12. zippo1973

    zippo1973 Donator

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    JSB Exact 4.52, batch 8000013 through my HW100, pellet on pellet :)
     
  13. stryder5

    stryder5 Donator

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    If pellets are loaded into magazine correctly they do not effect pellets or accuracy.

    Mine and other tests are conclusive in this.
     
  14. mattyts

    mattyts Donator

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    That's correct but only if your magazine lines up correctly,if it doesn't like in a lot of causes,no amount of careful seating will fix the problem.
     
  15. Patrick

    Patrick Donator

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    Some barrels are more pellet fussy than others,some are quite tolerant of variation in pellet size others are not.Different pellets can also affect muzzle energy and velocity,e.g take my Hatsan Mod 60s ,Bisley Superfield 15.1 580fps 11.2 fpe approx Gamo Pro Magnum 15.4 grns 435 fps 6.3 fpe approx.
     
    Last edited: Sep 30, 2014
  16. Ballisticboy

    Ballisticboy Posting Addict

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    There was an article in the October 2013 Airgun Shooter which tried to explain why some pellets of a certain size work well in certain barrels when others don't. It may help you to understand.
     
  17. NJC3107

    NJC3107 Member

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  18. Clubshot

    Clubshot Clubshot

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    Defiants are stamped our on Single Dies

    Most wasted Design are made on Multi Head Dies

    Size differences comes down to who made the Barrel

    BOB/R
     

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