How bad can a bore be and still be safe to shoot Part two with pictures,
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    Wrangler
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    How bad can a bore be and still be safe to shoot Part two with pictures,

    Hi folks,
    Back to the question on the 1892 I asked a few weeks ago. Would you shoot this? Even to fire lap it? I did buy a fire lap kit. Also, remember this barrel has had several hundred strokes with JB. Enlarge pictures each is titled with the location in the bore.
    Attached Images Attached Images
    Last edited by steve-brook; 05-11-2020 at 12:15 PM.

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    Photo information... The pictures were taken with a usb borescope ( available from Amazon 49.00 ) hooked to my cell phone. Pretty good quality it seems. Compact enough to throw in a back pack and take to the shows.
    Last edited by steve-brook; 05-12-2020 at 09:25 AM.

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    Deadeye
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    Absolutely nasty bores are safe to shoot as long as there is no obstruction. Whether it will shoot accurately is another story.

    You should see the bore on my 3rd model Smith& Wesson .44 Russian. It looks as if someone ran a drill bit down it! Still shoots pretty well, considering.

    Sure I would shoot it. I would shoot it enough to see if it will group, determine how tight the groups are, and go from there.
    Determine how much work it is to get the bore reasonably clean after you have shot it. Bores don't have to be perfect to be good shooters. Vintage guns don't always have good bores.
    Pay no attention to the mess in my shop. My best work comes from chaos!
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    It is safe as long as no obstruction or damage that compromised the barrel structure. Whether it will shoot accurately is another question only answered by shooting it. Jacketed will probably work better than cast and it will probably foul rapidly, but I had military guns with sewer pipe bores that shot remarkably well. If you find you need relining , contact John Taylor at Taylor Machine. He is a member over at Castboolits and does great work.
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    Gun Wizard
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    I think in the case of this barrel, leading might be a good thing to fill the pot holes. LOL I have one like that and am not sure what I want to do about it until I get a good aperture sight and clean it up good.
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    I agree it will be safe to shoot but maybe not to hot loads? I have a theory that worn, pitted bores will allow a fast bullet to slip. If its slower worn rifleing or pitting will still be able to grab hold and impart a spin. Just my opinion.
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    Quote Originally Posted by tranteruk View Post
    I agree it will be safe to shoot but maybe not to hot loads? I have a theory that worn, pitted bores will allow a fast bullet to slip. If its slower worn rifleing or pitting will still be able to grab hold and impart a spin. Just my opinion.
    I think what you are seeing are bumps not pits. I have cowboy loads for starters.

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    Quote Originally Posted by Da Duke View Post
    I think in the case of this barrel, leading might be a good thing to fill the pot holes. LOL I have one like that and am not sure what I want to do about it until I get a good aperture sight and clean it up good.
    I like the idea of a re-pave. Just hope it is not 25 caliber once done...it is supposed to be a 32-20. course I guess there is plenty of 25-20 out there.

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    Safe to shoot, but leading and accuracy might not be good. I'd fire lap and then use a coating called dyna something. It will actually fill the pitting spots. You will have to Google it. Otherwise, I would send it off to Redman's and make it a larger caliber.

  11. #10
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    Thanks for the re-assurance folks.

    How bad an idea would a gentle lapping prior to shooting be? Obviously JB is too fine to get anywhere. I have 220, 380, and 600 grit available.
    Gareth Holland likes this.


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