weighing pellets

Discussion in 'General Airgun Chat' started by NJR 100, Nov 14, 2011.

  1. NJR 100

    NJR 100 Because I`m AWESIME !!

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    For those that weigh pellets, what sort of tolerances do you stick too?

    ie. if using 8.44, do you only keep say 8.0 -8.8

    Its one of the things that puts me off using Exacts, though apparently the new batches in the new design tins are far better in weight variance than previous years. The last exact tin i weighed had from 7.9 - 9.1 in a tin!


    I dont weigh generally these day as my Express 7.9 were on the whole 7.8 -8.0. Most around 7.9.

    having weighed a couple of tins of Falcon yesterday most were 7.3 with a few 7.2, probably about 30 from 1000. A few more 7.4g, say 80 from 1000.

    i have sized the 7.4 and will be testing them all at 55 yards to see if they are dropping any more than the 7.3. i dont really expect them too?



    So, how far off the given weight for a pellet is still ok to use?
     
  2. sportsmatch

    sportsmatch Member

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    Hi Simon
    I batch in .1 so 8.3-8.39, 8.4-8.49 and 8.5-8.6 all others outside these are used after a barrel clean or just plinking

    I have found they work 7fps difference between the .1 grain batches

    never found that weight differenance lowest 8.1 and highest 8.78

    Gary
     
  3. Dave Ramshead

    Dave Ramshead England HFT Team squatter

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    I use this system and have found the same regarding fps spread.
     
  4. berty177

    berty177 Judge Diva

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    Batching

    Simon,

    I weigh mine as follows for Exacts...

    8.29 and under
    8.3 - 8.39
    8.4 - 8.49
    8.5 - 8.59
    8.6 and above

    The lightest I use for the winter and the heaviest I use for local comps in the summer.

    I use the rest for main comps through summer.


    Berty
     
  5. mikewills8904

    mikewills8904 walthers last the course

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    wieghing

    simon
    i do mine and keep
    8.30 to 8.38 fpr practice and use them in my hft/sft gun
    8.38 to 8.50 for main comps
    anything else gets keep for plinking etc

    out of 4 tins of die 140 i would expect to get 1600 between 8.38 and 8.50
    about 300 ish 8.30 to 8.38
    i never waste more than than 100 ish per 4 tins

    how sad are we


    over the chrono the 8.38 to 8.50 vary between 778 and 785 total spread
    the 8.30 to 8.38 about 783 to 788 ish

    now i am very sad
     
  6. NJR 100

    NJR 100 Because I`m AWESIME !!

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    Have you nothing better to do on honeymoon lol:eek:

    Thans for the replies, it was just a curious question as unless my 7.4g drop Wednesday, it seems to make no difference in my guns with the lighter pellets?
     
  7. Willbe

    Willbe I Like BIG Hats!

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    Use a similar system but metric, 0.53g, 0.54g, 0.55g, 0.56g
     
  8. AndyIoW

    AndyIoW Member

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    When weighing my JSB's I keep everything between 8.35 and 8.5 and the rest are used for practice and plinking. I suppose I get around 200 per thousand that are used for plinking.

    I have noticed however that there are the occasional pelelts that are quite a bit heavier or lighter, maybe 2 or 3 per tin. If by just weeding those out then I am not concerned with the pelelts but more me :D the idiot squeezing ( or even yanking) the trigger.
     
  9. Artfull-Bodger

    Artfull-Bodger Member

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    I only weigh enough for a comp each time and with Mossies (7.9) I keep all in the 7.8 - 8.0 for comp, and the rest for plinking, occasionally you see a very light or very heavy but on the whole I reject more because of deformations or nicks than weight, even then its barely 20 from a tin on average.

    I did some bench tests with exact and express batching in .1 grain increments then shot the heaviest and lightest back to back, in all honesty it made no real difference even between 8.3 and 8.7 g at 50yds vertical spread of the group was barely different from the group shot with 8.4, and even then I could not get consistent results every time because the breeze varied the groups more than the weights did.

    So I came to the conclusion its peace of mind rather than any real technical advantage as even with the same weight FPS varies with all rifles!
     
  10. Lavant_Lad

    Lavant_Lad Old Git.

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    I agree, these are my findings also.
     
  11. Adam

    Adam Well-Known Member

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    My current batch of Exacts range from 8.15 to 8.65 but the median seems to be in the low 8.3s.

    They group well out of the tin but I'm really weighing for peace of mind and just to weed out freakishly heavy or light pellets, so at the moment I'm selecting 8.2 to 8.5. I'll just do 50 or so before a comp. Plinking and zeroing I use them straight out of the tin.
     
  12. herx77

    herx77 Member

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