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Thread: Re-bore to 45-70?

  1. #1
    Boolit Buddy Rockingkj's Avatar
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    Re-bore to 45-70?

    My 1886 Winchester 40-82 has a rough nasty looking bore. Has anyone had one re-bored and re-chambered to 45-70? If so who would you recommend?

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    I would call JES. I believe in Oregon. http://35caliber.com
    Reboring is his specialty
    He did a 308 to 358 for me and if shoots wonderfully.
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  3. #3
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    Mk42gunner's Avatar
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    Isn't the .40-82 made on the 2.4" case like the .45-90?

    I don't know if that would make any difference in the action handling the .45-70 or not. I'd try cycling a dummy round first.

    Otherwise, it sounds viable to me.

    Robert

  4. #4
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    GregLaROCHE's Avatar
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    You might consider having it sleeved back to original, unless you really want a 45/70.

  5. #5
    Boolit Buddy freakonaleash's Avatar
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    I'd sleeve it back to 40 82. I have one and it's an excellent shooter.

  6. #6
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    stubshaft's Avatar
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    I would send it to JES OR Bobby Hoyt. They have both done excellent work on my rifles.
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  7. #7
    Boolit Grand Master FergusonTO35's Avatar
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    There is a 336 .30-30 with absolutely trashed bore in a shop near me. I'm going to see if I can get it cheap to become a .38-55.
    Currently casting and loading: .32 Auto, .380 Auto, .38 Special, 9X19, .357 Magnum, .257 Roberts, 6.5 Creedmoor, .30 WCF, .308 WCF, .45-70.

  8. #8
    Boolit Master

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    Have you shot it? I have a 32-40 Stevens with a sewer pipe bore. With an oversized bullets, gas checked, black powder it will shoot about 1 MOA at 100 all day. I also have a Remington Hepburn in 45-70 about the same. I have no doubt I could hit a white tail at 200 plus yards in the ribs and kill it. I just don't see the rebore on those guns. Have an old ratty Win 94 with bad chamber in 30-30. It got a 32 Special rebored to 38-55. I have no regrets. Enjoy

  9. #9
    Boolit Buddy Rockingkj's Avatar
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    Probably good advice to shoot it before getting radical. Agree have a Stevens Favorite.22 w nasty looking bore that shoots better than I can hold it.

  10. #10
    Boolit Buddy
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    Rockingkj, if it were me, i would load up some PC'd rounds (20-25rds.) and try it 1st., might be surprised, or sell it and pick up a 45-70
    A 40-82 just sounds cool.

    coffe's ready, Hootmix.

  11. #11
    Boolit Buddy Rockingkj's Avatar
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    It’s still a work in progress. Bought it as a parts gun. All there but butt stock and fore end when I get that fixed and re-assembled will try and shoot it.

  12. #12
    Boolit Buddy
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    40-82 is a wonderful cartridge, loads easy, feeds like a dream, a little less recoil than a 45-70. It does use a 2.4" case, but 45 years ago I used 2.1" 45-70 cases, and 41 Mag pistol bullets!

    Doesn't John Taylor reline them?

  13. #13
    Boolit Buddy
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    Hey Rockingkj, in yours a rd. or oct. barrel, and how long??

    coffee's ready, Hootmix.

  14. #14
    Boolit Buddy
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    Yup you make 40-82WCF from 45-2.4. I built a Remington Roller in 40-82WCF and eventually found a Winchester 86 in the same. Winchester has a 30" octagon barrel. It has trouble cycling rounds from the magazine. The bore likes a .409 bullet I needed to neck turn some brass so cartridges would chamber. It's an interesting cartridge to play with.

    Bill

  15. #15
    Boolit Buddy Rockingkj's Avatar
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    Quote Originally Posted by Hootmix View Post
    Hey Rockingkj, in yours a rd. or oct. barrel, and how long??

    coffee's ready, Hootmix.
    Round barrel just a bit over 25” long. Early gun made in 1887

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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