Results 1 to 13 of 13

Thread: Advice in pellet weighing categories please

  1. #1
    Marksman

    User Info Menu

    Default Advice in pellet weighing categories please

    Hi guys
    i weighted a red tin of jsb 10.34 and got from 10.16 all the way up to 10.54 in the tin...basically going up in .2s like 10.30, 10.32, 10.34, 10.36, ect
    My question is can i add say 3 close weights like .30 to .32 and 34 ect and reduce the +-11 dirrent weights to +-6...will it make a notable diffrence....? to avoid confucious grouping using a 10.16 and a 10.52 straight out the tin unknowing and wondering why...

    AA Tins are better....but sometimes sold out...
    I find this salad in cpum tins also.
    Sign Up To Air Rifle SA Forums

  2. #2
    Protea FT Team '17
    SAFTAA FT Colours '16
    Forum Sponsor

    User Info Menu

    Default

    @Headshot,

    I would just group the pellets according to the 1st decimal together. ie. 10.16 - 10.19 together,
    10.20 - 10.29 together, etc etc
    Unless you doing really long range stuff or BR, i doubt you will notice any difference in POI using this method of grouping (only looking at the weight variable and ignoring diameter etc etc)
    Sign Up To Air Rifle SA Forums

  3. #3
    Protea Benchrest (Air) Team '15/'17

    User Info Menu

    Default

    Why do you not do a test for us and post it on here?

    Shot a 5 shot group with five light +/-10.16 gr group and heaviest five pellets +/- 10.54gr group next two each other at 25 and 50 meter and post the results on here please.
    Sign Up To Air Rifle SA Forums

  4. #4
    Marksman

    User Info Menu

    Default

    ok thx i will do both... the test asap...it could take a few days...waiting for conditions...
    Sign Up To Air Rifle SA Forums

  5. #5
    Protea FT Team '17
    SAFTAA FT Colours '16
    Forum Sponsor

    User Info Menu

    Default

    I suspect you already have an answer on this even before the tests are done

    Quote Originally Posted by Juniork View Post
    Why do you not do a test for us and post it on here?

    Shot a 5 shot group with five light +/-10.16 gr group and heaviest five pellets +/- 10.54gr group next two each other at 25 and 50 meter and post the results on here please.
    Sign Up To Air Rifle SA Forums

  6. #6
    Sharp Shooter

    User Info Menu

    Default

    Quote Originally Posted by Keith T View Post
    I suspect you already have an answer on this even before the tests are done
    Agreed! Like the Protea Bench Rest guys haven't already done all these test with every concieable pellet weight, size and brand ever made.
    Sign Up To Air Rifle SA Forums

  7. #7
    Administrator

    User Info Menu

    Sign Up To Air Rifle SA Forums

  8. #8
    Marksman

    User Info Menu

    Default JSB 10.2gr and 10.5gr test results on 25m & 50m as requested by " JuniorK "

    Hi guys...
    the other day i weighed a red tin of JSB 10.34gr and got from 10.16gr - 10.52gr and requested advice whether it will make a diffrence on the poi ...so Junior K requested a test...
    Test conditions...
    Shooting position; standing next to and shooting from the car's roof
    Altitude; 5m above sea level, distance from sea 300m, Humidity 80%
    Sunny with 7-9 kmph south wind...[shooting against the wind on 50m and across on 25m]
    My opinion is the 10.5gr is better on long range...
    please excuse..im not a good shot yet...


















    Sign Up To Air Rifle SA Forums

  9. #9
    Marksman

    User Info Menu

    Default

    a mate of mine says "verticle strings" mean inconsistent stock pressure into shoulder ...
    Sign Up To Air Rifle SA Forums

  10. #10
    Protea Benchrest (Air) Team '15/'17

    User Info Menu

    Default

    Thanks for the test.

    My experiance is the weight difference effect is hardly noticable if your barrel/pellet combination does not gives you very consistent BC pellet after pellet.
    Theoretically you should see about a 1mm drop difference at 25meter and about 5mm difference at 50meter if all pellets leave the barrel with the exact same BC and depending on what distance your rifle was Zero'ed and what your scope hight above your barrel centre line is.
    As you can see with your test - this is neglegent small, compared to your pellet to pellet POI spread.
    Last edited by Juniork; 20-08-17 at 22:11.
    Sign Up To Air Rifle SA Forums

  11. #11
    Protea Benchrest (Air) Team '15/'17

    User Info Menu

    Default

    Theoretically, if your rifle is set up at 14,5fpe it will shoot the 10,2gr at 800fpe and the 10,5gr at 788,5fps. This is a 11,5fps spread.
    All my competition rifles shoot with a +/-11fps spread and I do not worry that it will throw me off at 25meter ��
    So from now on I will also stop weighing my competition pellets ��
    Last edited by Juniork; 20-08-17 at 22:23.
    Sign Up To Air Rifle SA Forums

  12. #12
    Protea FT Team '17
    SAFTAA FT Colours '16
    Forum Sponsor

    User Info Menu

    Default

    Junior, what do you DO to your pellets before a competition.
    What about diameter of the heads or any thing else we can do to make them better?????
    Sign Up To Air Rifle SA Forums

  13. #13
    Protea Benchrest (Air) Team '15/'17

    User Info Menu

    Default

    Keith, I check head size with the front end of a Bic pen. I am not sure if it make any difference.

    If pellets do not shoot good from the tin - do not bother weighing or checking head size or anything else.
    Sign Up To Air Rifle SA Forums

Similar Threads

  1. pellet weight and weighing?
    By androdupreez in forum General Airgun Discussions
    Replies: 38
    Last Post: 25-04-15, 13:28
  2. Advice/experience Pellet selection Hatsan AT44 4.5mm
    By Graeme in forum General Airgun Discussions
    Replies: 11
    Last Post: 16-11-14, 08:32
  3. Pellet advice needed
    By HACKNEYL in forum General Airgun Discussions
    Replies: 5
    Last Post: 12-02-11, 10:23
  4. Weighing pellets
    By Andrew in forum General Airgun Discussions
    Replies: 54
    Last Post: 26-04-10, 10:43
  5. weighing Pellets
    By dave S in forum General Airgun Discussions
    Replies: 6
    Last Post: 23-11-08, 21:39

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •