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So we had a mandetory, Chrono at our match today.

Discussion in 'Reloading' started by Colorado4Wheel, Sep 11, 2011.

  1. Colorado4Wheel

    Colorado4Wheel

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    Yep. Local match. Nothing special. But we set up the chrono box and everyone had to pick a magazine and have the chrono guy shoot the ammo over the chrono. We had about 70 shooters and 11 people went "Minor" and one person shooting minor went "Sub-Minor". So 12 out of 70 failed. That is atrocious. Keep in mind, you got to pick the ammo that was chrono'd. We didn't grab some random magazine. In others words you could have shot your cheater ammo and just loaded a good magazine purely for the chrono.

    The chrono guy also said my ammo was the softest shooting of the entire match. It chrono'd 129.7 PF.

    It was a interesting day.
     
  2. Three-Five-Seven

    Three-Five-Seven Señor Mombo Millennium Member

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    We talkin' 1911s here? If so, surprising that PF operated the pistol.
     

  3. Colorado4Wheel

    Colorado4Wheel

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    Mine is a G34. It functions ok stock with that ammo but I have a 15lb recoil spring in it just to give me a little extra margin. It's very reliable like that. Most, stock 9mm will function OK with 130PF ammo. Mine had chrono'd 132 just two days before with the same chrono.
     
  4. XDRoX

    XDRoX

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    Is there a formula for figuring PF?
     
    Last edited: Sep 11, 2011
  5. Meathead9

    Meathead9

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    Bullet Weight x FPS = PF

    Minor = 125,000
    Major = 165,000
     
  6. Colorado4Wheel

    Colorado4Wheel

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    My 158gr bullets were going 818-821fps. Pretty small spread. Two days ago my lowest in a string of 10 that I tested was 129PF. Just shows how a small sampling and a different day can really make a difference.
     
  7. unclebob

    unclebob DFC, MSM, 13 Air Medals.

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    All of my 9mm Glocks function with a PF of 124 with stock springs.
     
  8. XDRoX

    XDRoX

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    Thanks.
     
  9. Zombie Steve

    Zombie Steve Decap Pin Killa

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    Guess I was shooting 184 at the last match...

    :whistling:

    Mayhap I'm not much of a gamer.
     
  10. GioaJack

    GioaJack Conifer Jack

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    Don't they just have to be quicker than the bad guy... how fast does a cardboard target run? :dunno:


    Jack
     
  11. unclebob

    unclebob DFC, MSM, 13 Air Medals.

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    How fast can you run holding a target?:supergrin:
     
  12. fredj338

    fredj338

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    Many of the local club shooters shooting ESP or SSP & 9mm are fudging the PF IME. Even some of the CDP guys. Not surprising, there are those that just have to win & since they KNOW that local clubs don't check ammo, they fudge. Like cheating on tests in school though, it doesn't prepare you for the real world or a sanctioned match where your ammo will be tested for sure.
     
  13. WiskyT

    WiskyT Malcontent

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    In my experience, heavier bullets help function compared to lighter with bith running the same PF. I never loaded for PF, but I found that 115's that wouldn't run my G17 had a PF of "X" and a 147 could be loaded below that PF and still run the gun.

    As for gaming, all of that stuff is gaming anyway. I'm not in favor of cheating, but realistically, the guy running a 126PF is not going to be more prepared for a real life encounter than the guy who is running below 125.
     
  14. fredj338

    fredj338

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    No, but the guys shooting full power ammo of say 135-145PF vs the guy shooting 115PF may be??? Many will say that the recoil doesn't matter, but obviously it does, or the guys fudging the PF wouldn't do it.:whistling: They shoot better w/ bunnyfart loads & not as well w/ full power ammo. SO yes, they are gaming it.
    IMO, they should raise the PF for minor, the 40 guys shoot against the 9mm guys & I am not aware of ANY 40 factory that is much less than 150ish, about where good 9mm+P would be, hell even 38sp will make 135, about where minor probably should be set if the intent of IDPA is more realistic shooting & less gaming.:dunno:
     
    Last edited: Sep 12, 2011
  15. MoNsTeR

    MoNsTeR

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    Loved loved LOVED having an official match chrono, big kudos to whoever had the idea, and to Lizard & Gene for supplying & running it. You always suspect a few people aren't quite making PF but 12 out of 70 is pretty shocking.

    (I made a comfortable 170.7 myself...)
     
  16. Colorado4Wheel

    Colorado4Wheel

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    Lizard and I made those chrono boxes years ago. Ever sence I have asked him to do a official chrono. HE always made it optional. I stopped asking a while back. It is his eqipment. Then out of the blue he said ".Lets do a match chrono that counts ". I thought it went great.. Expect to see it again. Gene did a great job with it.
     
    Last edited: Sep 12, 2011
  17. Fwdftw

    Fwdftw

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    Makes sense for that to happen.
     
  18. Hoser

    Hoser Ninja

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    Sorry I missed it.

    Crappy results though.

    I am glad it counted for score though. You shoot it, you earn it.
     
  19. ron59

    ron59 Bustin Caps

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    Yep, that sounds great. I know when I first started I was looking for "an edge", quickly found out that 147gr 9mm bullets ran slowly were extremely inaccurate. Boosted them up to 910fps minimum through my G17, much better.

    I'd never have any concerns about my ammo being chrono'ed.
     
    Last edited: Sep 12, 2011
  20. Tpro

    Tpro On the mark

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    How long did the chrono process take? Since I don't shoot competitively, I thought maybe that';s why they wouldn't chrono every match. I just ASSumed that all matches were chrono'd:whistling:

    If given a chance a cheater always will...