Pitted Barrel Project

Discussion in 'Percussion Rifles' started by Are. M., Jan 3, 2020.

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  1. Jan 3, 2020 #1

    Are. M.

    Are. M.

    Are. M.

    32 Cal

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    So my brother has this old TC White Mountain carbine. As some of you may know, replacement barrels for this rifle are hard to come by. It'll hold a loose group at 25yds with PRB, but it shreds the patches (see photos below). My plan is to scotch brite/lap/anything to try and remove some of the pitting. If not, if possible, I'd like to rebore to .54 and leave that sucker smooth. Any ideas or suggestions are welcome. I'll post photos of my progress along the way.

    RM





    20191228_105238.jpg 20191228_105224.jpg
     
  2. Jan 3, 2020 #2

    rich pierce

    rich pierce

    rich pierce

    70 Cal.

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    These barrels are work hardened inside and very difficult to lap or recut. Best bet is to get it bored out and re-rifled by Bobby Hoyt and never use a black powder substitute again.
     
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  3. Jan 3, 2020 #3

    SDSmlf

    SDSmlf

    SDSmlf

    40 Cal.

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    Bobby has done a number of barrels for me with great success. Tell him what you want to use or do with the barrel and follow his suggestion. He knows his craft.
     
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  4. Jan 3, 2020 #4

    sussexmuzllodr

    sussexmuzllodr

    sussexmuzllodr

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    Hey Rich ,no disrespect but a through cleaning is in order after use....Pdex or Real Black,
    Have the same T/C barrels for 25 years and they are still pretty good.
    I think that most of the ones we see here were neglected.
    SM
     
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  5. Jan 3, 2020 #5

    sussexmuzllodr

    sussexmuzllodr

    sussexmuzllodr

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    Rm I had hoyt do a recut on a .50 cal flinter thay was in good shape. it shoots real well.
    But a rebore might be in order for yours
    SM
     
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  6. Jan 3, 2020 #6

    sussexmuzllodr

    sussexmuzllodr

    sussexmuzllodr

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    RM some guys have has success using valve grinding compound.
    SM
     
  7. Jan 3, 2020 #7

    SDSmlf

    SDSmlf

    SDSmlf

    40 Cal.

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    With Mr. Pierce on this one. Have seen more barrels compromised with subs, particularly Pyrodox, than with black powder. Agree that Pyrodox residue can be throughly and completely cleaned, however, it takes more effort and diligence when compared to black powder. For the average muzzleloading shooter black powder gives a larger margin of ‘cleaning error’ as it will cleanup with water alone. Not something Pyrodox is known for.
     
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  8. Jan 3, 2020 #8

    Are. M.

    Are. M.

    Are. M.

    32 Cal

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    Only thing I'd be worried about with a rebore is the barrel being too thin at the muzzle.
     
  9. Jan 3, 2020 #9

    SDSmlf

    SDSmlf

    SDSmlf

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    Bobby Hoyt will advise on minimal barrel thickness and will not rebore a barrel to a caliber he is not comfortable with. He will not lead you astray.
     
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  10. Jan 3, 2020 #10

    sussexmuzllodr

    sussexmuzllodr

    sussexmuzllodr

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    Yes, I understand but being the fact that P Dex is available more than Ole Black where I live I have had to deal with it by cleaning completely thru the years. I guess cleanliness is the key.
    SM
     
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  11. Jan 3, 2020 #11

    sussexmuzllodr

    sussexmuzllodr

    sussexmuzllodr

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    Can anyone refresh my Memory. The White Mountain Carbine was Stainless? Right?
    SM
     
  12. Jan 3, 2020 #12

    SDSmlf

    SDSmlf

    SDSmlf

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    No. Blued steel.
     
  13. Jan 3, 2020 #13

    SDSmlf

    SDSmlf

    SDSmlf

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    No argument that Pyrodox works. And as long as you are meticulous in your cleaning no problem. Problem that I see are some that are not exactly meticulous with their cleaning process and then are then perplexed when corrosion and pits take over their bore. Find that black powder residue is easily cleaned with tepid water, not the case with Pyrodox.
     
  14. Jan 3, 2020 #14

    bang

    bang

    bang

    45 Cal.

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    I reworked 2 barrels like this last summer. Takes a bit of time and patience but doable. If you want the info just say.
     
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  15. Jan 3, 2020 #15

    Okie Hog

    Okie Hog

    Okie Hog

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    IMO: The barrel is trashed.

    i've attempted to rejuvenate barrels like this one. Yep, Evapo-rust will remove all the rust. You are left with a badly pitted barrel that will cut patches and easily rust again. i currently have a .54 barrel that was like that one. i've spent tens of hours working on that barrel with Evapo-Rust, jewelers rouge, Scotch Brite and steel wool; it ain't worth the trouble. It's going to Bobby Hoyt.

    Send the barrel off to Bobby Hoyt: Have him transform it into .54 caliber with round bottom patched round ball twist.
     
  16. Jan 3, 2020 #16

    Grenadier1758

    Grenadier1758

    Grenadier1758

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    Its not being too thin at the muzzle, but being too thin at the dovetails and screws.
     
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  17. Jan 3, 2020 #17

    Tom Compton

    Tom Compton

    Tom Compton

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    Mr Hoyt can put a liner in a barre to same bore as original or even smaller.
     
  18. Jan 3, 2020 #18

    bang

    bang

    bang

    45 Cal.

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    This is a 50 I reworked. It was as bad as the OPs pix. Shot horrible. Now will put on target and within 1/2" holes almost touching.
    20200103_140409.jpg 20200103_140638.jpg
    It will get better with more shooting.
     
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  19. Jan 4, 2020 #19

    Bledfor Days

    Bledfor Days

    Bledfor Days

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    I don't see in the original post that RM ever stated that he is or was using a black powder substitute.
     
  20. Jan 4, 2020 #20

    rich pierce

    rich pierce

    rich pierce

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    I have a vivid imagination
     

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