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9mm Power Pistol too much soot

Discussion in 'Reloading' started by mamamia, Apr 9, 2011.


  1. mamamia

    mamamia
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    Powder: 5.9gr power pistol
    Bullet: 115gr FMJ (Winchester)
    OAL: 1.160-1.165 (varies a lot for some reason, I can't get anything with one single OAL)

    Powder: 6.2gr power pistol
    Bullet: 115gr FMJ (Winchester)
    OAL: 1.160-1.165 (varies a lot for some reason, I can't get anything with one single OAL)


    Powder: 4.2hr Power Pistol
    Bullet: 147gr JHP (Winchester)
    OAL: 1.158-1.162

    I see there is a lot of soot in the case, outside the case, feeding ramp and the chamber itself. Any idea what is happening? I shot some Walmart ammo in the same gun and see it burns clean and no soot at all.
     

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    #1 mamamia, Apr 9, 2011
    Last edited: Apr 9, 2011
  2. AJE

    AJE
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    *goes to 11*

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    Try a little hotter charge. I run 115gr near max (6.7gr).
     

  3. Postal Bob

    Postal Bob
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    If using very light charges, there won't be enough pressure to compleately expand the brass cases against the chamber walls. Therefore you get some gases blowing between cases and chamber walls. It's similar to what happens when you shoot steel cased ammo.
     
  4. mamamia

    mamamia
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    I see the same issue with 6.2grs. Should I shorten the OAL?
     
  5. Kwesi

    Kwesi
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    That's what I did. I chrono'd the following with Power Pistol, PD 115gr FMJ's and 1.130 OAL +/-: Stock G17

    5.9gr
    CCI's
    1199

    6.1
    CCI's
    1222

    6.3
    CCI's
    1234

    Hope this helps. Go slow and work up.
     
  6. Colorado4Wheel

    Colorado4Wheel
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    Look at the data on Alliants site. You will see that your loading longer and pretty light. I wouldn't fiddle with OAL but I would work it up some more. It burns plenty clean in my gun.
     
  7. Boxerglocker

    Boxerglocker
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    Mine too with 147 GDHP's. I use it for my simulated SD practice loads.
     
  8. fredj338

    fredj338
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    Loading shorter or adding powder, either increases pressures. FWIW, I started @ 6.2gr w/ a 115grFMJ, shot fine, but quite a bit of room still to run.
     
  9. mamamia

    mamamia
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    Fred,

    what was your OAL? also can you provide some thoughts on how to get consistent OAL.
     
  10. Colorado4Wheel

    Colorado4Wheel
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    I'm not Fred, but what machine are you loading on?
    What die are you using?

    Basically, I get .001" on either side of my chosen OAL. Here is how you do it (I have lee seating dies).

    Take the stem out and put it in a drill to spin it and polish the inside of the stem with some 400 grit wet/dry sandpaper.

    Always load with a full tool head.

    That should get the OAL to .002" easily on each side of your measurement. .004 variance or so.
     
  11. mamamia

    mamamia
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    Steve,

    loading on Lee press (basic SS which comes with a book) with Lee dies.
     
  12. fredj338

    fredj338
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    My OAL w/ the PD 115grFMJ is 1.145". Seating & crimping in one step w/ mixed brass can yield 0.005" variations in OAL. No big deal really, I wouldn't sweat that, bullet noses can vary that much.
     
    #12 fredj338, Apr 10, 2011
    Last edited: Apr 10, 2011
  13. cole

    cole
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    I hear PP is meant to run hot. I'd bump as well.

    That said, I worry little about soot anymore. It does not effect function. It wipes off. I clean my SD guns after each trip. I care most about performance.
     
  14. mamamia

    mamamia
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    You don't use FCD? I noticed if I don't use FCD the rounds will not fall out the barrel freely.
     
  15. fredj338

    fredj338
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    Never have, never will, well, except for the bit of testing I did w/ one in 45acp. I have managed for some 35yrs to load 100s of 1000s of rounds in a dozen calibers w/o a LFCD. No, they are not needed, not even desired for certain types of bullets as it does degrade accuracy, at least in my test w/ the 45acp. Yes, you can get the occasional round that won't feed, but case gaging spots those, often a bad piece of brass. Personal choice, just not mine. The LFCD is a brilliant solution to pretty much a non existent problem IMO.
     
    #15 fredj338, Apr 10, 2011
    Last edited: Apr 10, 2011
  16. cole

    cole
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    Agreed. And, IMO any problem a LFCD "fixes" should be corrected another way.
     
  17. Colorado4Wheel

    Colorado4Wheel
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    Size a case, barrel check it.

    Load a case, crimp it properly, barrel check it.

    There should be no difference. If there is you should figure out why. I actually enjoy doing. You learn a lot chasing these type of things.
     
  18. fredj338

    fredj338
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    My results in my test shooting w/ loads done w/ & w/o LFCD in 45acp. DIstance was 15yds, benched, but it was a bit windy. There is a def accuracy pref for NOT using the LFCD.
    [​IMG] [​IMG]
    [​IMG]
     
    #18 fredj338, Apr 10, 2011
    Last edited: Apr 10, 2011
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