4.52 or 4.53?

Discussion in 'General Airgun Chat' started by Old slider, Dec 18, 2014.

  1. Old slider

    Old slider Member

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    Morning all,I normally use 8.4 4.52s,shot through the chrono doing 784 to 790approx,
    I got hold of few 4.53s put them through it coming out 792 to 798 approx.
    The question is does this mean my barrel would be better suited to the 4.53s
    Or not?

    Thanks Ian.
     
  2. johnnyboy

    johnnyboy Member

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    No your have to get on a range and see how they group in comparison to each other.

    The important point is that you are getting very close to the legal limit and could quite easily go over.

    Regards

    John:eek:
     
  3. villiers

    villiers Self appointed antipimp

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    No the one thats groups better is what i would be looking for at a speed my gun worked constantly at.
     
  4. Yorkshiretea

    Yorkshiretea B Grade Bandit

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    No, go check your groups at 50yds with them, as others have mentioned you are very close to the legal limit with the readings you're getting. One of the readings, 798, would see you disqualified from a competition.
     
  5. chrisc

    chrisc Lucky git

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    As above Ian, the best grouping pellet should be your priority.....

    However....:D:D

    My SFT Steyr groups very well with most pellets but the longer range groups (55y) with 7.9gr express are the tiniest bit tighter....now here's the however....... the 7.9gr move unpredictably in the wind so i use batch 22, 4.52, 8.44 gr pellets as the best all rounder. Trial and error mate, it's the only way to find out. Also, if you're shooting HFT and not dialing in the ranges , different batch numbers can have slightly different POI's. For example my batch 34 would be 5mm lower at 45 yards compared to batch 22 at exactly the same speeds through the chrono.
     
  6. Old slider

    Old slider Member

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    Ok cheers,
    Thanks for replys

    Ian.
     
  7. vinny

    vinny WHFTA 2015 World Champion

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    Off to Petes farm , do your grouping tests , then be dissapointed you cant get the same batch as what works best, enjoy
     
  8. Conor

    Conor Never been banned from sales Staff Member

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    I've just lately had very good results with JSB 4.49 but best by far is the JSB 4.50
     

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