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So after 40 rounds of 125gr LRN

Discussion in 'Reloading' started by Fwdftw, Jul 22, 2012.

  1. Fwdftw

    Fwdftw

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    I noticed leading in the barrel. it wasnt alot but after some CLP and 3-5 passes with a brush coated in copper strings ( cant remember the brush name..) i still noticed a couple spots in the bbl. Im letting some clp sit in it for a couple hours now.

    Bullets were 125gr LRN sized to .356
    Powder was 3.8-4.1gr of W231
    OAL 1.100


    What gives kids?
     
  2. WiskyT

    WiskyT Malcontent

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    0.356" is usually too small, but it is all that most commercial outfits offer. Also, typically, those bullets are very hard which only makes things worse. The first thing I would try is a slower powder. If you have Unique or similar, try a start load of that. If all you have is the 231, try using a bit less, say 3.5 grains. Also, the 3.8 charge may have not leaded and you might be seeing the leading from the 4.1. did you check for leading as you progressed through the powder charges, or just at the end of the session?

    Leading shows up pretty quickly. I would load 10 or 20 of 3.5, and 10 or 20 of 3.8. Shoot the 3.5 and inspect the bore. If all is well, try the 3.8 and inspect again. 231 is a pretty fast powder and i have found 3.5 of Bullseye is about the limit before leading starts in my 9mm's with a 125 bullet.
     

  3. Fwdftw

    Fwdftw

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    check wisky. i do have some unique left over i could try. but i did just buy a fresh lb of w231.. lol

    what would you suggest with unique?
     
  4. WiskyT

    WiskyT Malcontent

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    5.2 is around 1150 and which is what factory ball does. It's a max load so I wouldn't start out with it. I would try 4.5-4.8 and see how it does with the Unique.

    231 is a good powder, but fast powders and high pressure don't do well with lead bullets. If it runs fine with 3.5-3.8, you can use it for that. You can also use it at full loads with jacketed bullets.
     
  5. SJ 40

    SJ 40 Deplorable,Clinger

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    Unique,Power Pistol but my preference would be WSF,like Unique in burn rate and performance but cleaner.That said if I could only have one powder that would be Unique.
    SJ 40
     
  6. F106 Fan

    F106 Fan

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  7. El_Ron1

    El_Ron1 AAAAAAAAGHHH!!!

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    You can let CLP sit in the barrel until the Four Horsemen arrive and it's not going to persuade that lead to disperse. Go buy some:



    [​IMG]
     
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  8. Fwdftw

    Fwdftw

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    it very well could be the higher powder loads caused the leading wisky. I will try a 3.5 load and a 3.8 this time.

    where you getting the unique data? my lyman doesnt have a 125 bullet.
     
  9. Fwdftw

    Fwdftw

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    if you read my post i talk about a copper coated brush.. ahem.. Thats what its coated in lol a helluva lot of chore boy.
     
  10. El_Ron1

    El_Ron1 AAAAAAAAGHHH!!!

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    Sorry, you activated my ChoreBoy kneejerk response. At least I left the FCD out of it.




    :rofl:
     
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  11. Fwdftw

    Fwdftw

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    Oh lord.. NOT THE LFCD!!!!!!!! lol
     
  12. WiskyT

    WiskyT Malcontent

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    I don't remember where I got the 5.2 from. It might have been on the wall in the men's room. I'll look around and see if I can find it in any of my manuals. i have shot lots of it. It might have been in my Speer 13 which I loaned out and never got back. 5.8 is the max with jacketed from Alliant and Speer so it's not a screwball load.
     
  13. Fwdftw

    Fwdftw

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  14. WeeWilly

    WeeWilly

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    I have found bullet size the biggest factor in leading (except for when I try to push a plain base really hard, like in my 10mm's). Getting the size right can be kind of vexing with a revolver as you have a lot of hole dimensions to worry about, in a semi pistol much less of a challenge.

    Many manufacturers will sell a custom size bullet if you ask, some like Penn offer it right up front.

    On the other hand, I always read how guys get zero leading in all their guns. I have rarely been that lucky, I just clean it out with Chore Boy wrapped around a bore brush, no big deal.
     
  15. WiskyT

    WiskyT Malcontent

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    Okay, Lyman 45th edition form back when Jack was wearing a pornstar mustache and sans-a-belt slacks shows 6.0 Unique with a 121 grain cast.
     
  16. Fwdftw

    Fwdftw

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    6gr max wisky?
     
  17. F106 Fan

    F106 Fan

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    I don't know anything about loading the 125 gr LRN but...

    Speer #10 shows the 125 gr LRN with Unique at:
    4.1 gr (min) 911 fps
    4.5 gr (max) 1007 fps

    It also shows the Jacketed Soft Point with Unique as:
    5.5 gr (min) 1061 fps
    5.9 gr (max) 1192 fps

    Richard
     
  18. WiskyT

    WiskyT Malcontent

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    Yes, max. Let us know how they do:supergrin:
     
  19. Fwdftw

    Fwdftw

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    what the crap! lol i hate reloading data sometimes.
     
  20. WiskyT

    WiskyT Malcontent

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    Speer's LRN was swaged from butter soft lead. They limited their data based on performance of the bullet, not chamber pressure.