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Thread: PC abrasive?

  1. #1
    Boolit Master
    Mr Peabody's Avatar
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    PC abrasive?

    I've used BLL in my rifle for a few years to good effect. I started shooting PC'd boolits in it a couple months ago. Neither style fouls the barrel; but the PC'd boolits put a high shine in the bore. You suppose it's a mild abrasive?

  2. #2
    Boolit Master
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    I don't know, but I think that it contains Titanium Dioxide as an ingredient which certainly is. Take a PC bullet and rub it hard on a soup can...does it scratch it?

  3. #3
    Boolit Grand Master
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    MANY MANY thousands of us shoot PC'd boolits in everything but the kitchen sink. There are only a very very few reports of abrasiveness causing problems. And even those were extremely questionable!!!!!

    Only powders I have found that are ONLY very mildly abrasive are the flatte and matte finishes. All others are shiny and smooth.

    I sure would not concern yourself with "wearing out your barrel" with PC.

    banger

  4. #4
    Boolit Master

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    It really depends on the powder coat paint, I have read Harbor Freight may have harmful ingredients. Still, the jury is out, but I started with HF flat black with ESPC. Now, I use Prismatic Powder exclusively. Smoke sells powder here and I have heard nothing but praise for his stuff.

    There is an entire section dedicated to Coatings and Alternatives on this website. That is where I learned to ASBBPC, and of course the new acronyms. Electrostatic Powder Coating (ESPC) and Airsoft BB PC (ASBBPC) are a few. Heck, I even posted on my efforts to Copper Electroplate boolits using solar power. I wanted to build a electroplating barrel but ditched that after ASBBPC proved so successful.
    Common sense Gun Safety . . .

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  5. #5
    Boolit Master
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    Banger; I'm not worried in the least about wearing out a barrel. It was just something to consider.

  6. #6
    Boolit Man
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    Would be interesting to see the comparison of the abrasive qualities of various PC and the papers used to paper patch bullets.

  7. #7
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    I will tell you Smoke's Clear is as slippery as snot and It is even hard to pick up the bullets after coating Yes it may be tough but not as much as Copper clad
    Doubt it is wearing barrel metal
    " Associate with men of good quality, if you esteem your own reputation: for it is better to be alone than in bad company. " George Washington

  8. #8
    Boolit Buddy
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    Quote Originally Posted by JWFilips View Post
    I will tell you Smoke's Clear is as slippery as snot and It is even hard to pick up the bullets after coating Yes it may be tough but not as much as Copper clad
    Doubt it is wearing barrel metal
    Isn't that the truth about Smoke's clear. The Prismatic Powder high gloss powders have a lot of clear in them, translucent I suppose, and they are slick too.

  9. #9
    Boolit Buddy
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    At my age I'm not worried about wearing out a barrel.
    If you are worried about it don't use it.

  10. #10
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    What about the possibility of the PC coating the barrel and imparting the shine?
    Without the dark night, you would never see the bright stars...

    You can live forever if you give up all of the things that make it worthwhile.

    Why a .45...Because they don't make a .46!

  11. #11
    Boolit Master
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    Could be Stubshaft

  12. #12
    Boolit Grand Master
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    There is another thread on here where somebody had PC coating in his barrel. He admits his bake temp was off and PC did stick to the barrel bore.

    After many thousands of rounds (cured properly!) I have never found a trace of PC in any of my many barrels used with PC'd slugs.

    Could it happen? YES. Has it happened to me or anyone I know? NO.

    banger

  13. #13
    Moderator Emeritus / Trusted loob groove dealer

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    If propery heated, they are not abrasive. They are in effect plastic encased.
    The solid soft lead bullet is undoubtably the best and most satisfactory expanding bullet that has ever been designed. It invariably mushrooms perfectly, and never breaks up. With the metal base that is essential for velocities of 2000 f.s. and upwards to protect the naked base, these metal-based soft lead bullets are splendid.
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    Forget everything you know about loading jacketed bullets. This is a whole new ball game!


  14. #14
    Boolit Master
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    Interesting answers people. Thanks

  15. #15
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    like was said copper is harder then any pc so its going to wear a barrel faster then a pc'd cast bullet or for that matter any cast bullet. Then factor in the sks and aks and ars that are fed a diet of steal jacketed bullets. Pc is a non issue.
    Soldier of God, sixgun junky, Retired electrical lineman. My office was a 100 feet in the air, closer to God the better

  16. #16
    Boolit Master
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    What if an abrasive was desired? Would it not be possible to mix in a dry abrasive compound into powder prior to spraying or tumbling creating another lapping option?

  17. #17
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    I didnt like HF black when it was available because it felt like 180 grit sandpaper. I never did fire any of those. Smokes powder is nice and slick.

  18. #18
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    Quote Originally Posted by Mr Peabody View Post
    I've used BLL in my rifle for a few years to good effect. I started shooting PC'd boolits in it a couple months ago. Neither style fouls the barrel; but the PC'd boolits put a high shine in the bore. You suppose it's a mild abrasive?
    I am no expert on the PC, But as I understand it, correctly applied PC is super slippery, more so than Lube.

    I'm just thinking out loud here, but you don't mention cleaning the barrel.
    Maybe the residual waxes from BLL are being polished into the steel by your PC'd boolits.
    OR
    If you clean and oil your barrel, Maybe the PC'd boolits are burnishing the oil onto the steel, giving it a sheen?

    That's my 2˘
    ~~~~~~~~~~~~~~
    “If someone has a gun and is trying to kill you, it would be reasonable to shoot back with your own gun.”
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  19. #19
    Boolit Master dbosman's Avatar
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    Titanium dioxide is a pigment in hundreds of thousands of coatings. Its in food products too.

  20. #20
    Boolit Master
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    Let me preface this by saying I make no claims to be a powder coating expert. But I have a good friend who is in the powder coating business near me. I spoke to him about these coatings because I'm considering giving PC a try on a limited basis. He told me that most powders are polyester based. This should not cause anybody any problems. But he cautioned that some powders include some ceramic. I would think that ceramic based powders could indeed be abrasive.

    As I said. I'm no expert. This is only what I was told.

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Abbreviations used in Reloading

BP Bronze Point IMR Improved Military Rifle PTD Pointed
BR Bench Rest M Magnum RN Round Nose
BT Boat Tail PL Power-Lokt SP Soft Point
C Compressed Charge PR Primer SPCL Soft Point "Core-Lokt"
HP Hollow Point PSPCL Pointed Soft Point "Core Lokt" C.O.L. Cartridge Overall Length
PSP Pointed Soft Point Spz Spitzer Point SBT Spitzer Boat Tail
LRN Lead Round Nose LWC Lead Wad Cutter LSWC Lead Semi Wad Cutter
GC Gas Check