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In a 45-70 revolver, can 410ga be fired safely?

cpilericpileri Member Posts: 447 ✭✭✭
edited May 2002 in Ask the Experts
In a revolver chambered for the 45-70 Gov't round, such as the BFR or Thunder Five, can 410ga shotgun shells be fored safely? (assuming appropriate length for cylinder)

The pressure of the 45-70 is about 28K, way above the 410's 13K. The external diameter of the round is so very close but I am wondering if doing this may damage the forcing cone over time.


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Comments

  • NighthawkNighthawk Member Posts: 12,022 ✭✭✭
    edited November -1
    This subject is one where it depends on who you ask. I can only give you my advice. Dont do it!! Hope this helps.


    Good Luck.

    Rugster
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  • will270winwill270win Member Posts: 4,845
    edited November -1
    I don't reckon I'd do it cause it wouls give me an excuse to go buy one of those revolvers that is actually made for .410 gauge.


    ~Secret Select Society Of Suave Stylish Smoking Jackets~
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  • cpilericpileri Member Posts: 447 ✭✭✭
    edited November -1
    Well, according to :
    http://www.calweb.com/~haas/ammoguide/runammo.html
    The dimensions of each are the following:
    .45-70:
    projectile diameter: .458
    case diameter (distal, nearest to projectile): .480
    case diameter (proximal): .504
    rim (vaires, but listed as): .608

    .45 Long Colt (no 410ga listed, but if a 410 fits in a 45LC, then these dimensions should help)
    projo diameter: .456 (varies I'm sure, as most are .452-.454)
    case diameter (whole thing): .480
    rim (varies, but): .512

    So the 410 ought to snug right in the .45-70 cylinder. Maybe a little loose near the base where the 45-70 is larger, but should hold in place.
    Now, that extra space may cause pressure problems and case bulging- which is what i am really asking.

    Maybe some of those steel cased 410 shells available would work to holding the pressure? Maybe the tougher 45-70 cylinder (designed for double the pressure of a 410) would be fine in any case?

    I suppose that is more specifically what I am asking. Would ANYONE know the answer to that?

    I once spoke with the machinist at the Thunder Five factory, who said it would be fine. But I always got the impression he wanted to get me off the phone. So I never did it.

    Anyone who actually OWNS (or has owned) a Thunder Five or BFR know anything about it?



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    "The day that they come get your guns, is just
    one day before they use them on you!"
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  • IconoclastIconoclast Member Posts: 10,515 ✭✭✭
    edited November -1
    Can't speak to the .45-70, but have fired many .410 in one of the combo .45 LC / .410 chambers - big dif in recoil, but that was it. I concur w/ SP, there could be an extraction issue because of the nominal extra 0.020" clearance around the base, and w/ papershells a failure. If I were to try it (and frankly if I had one I probably would), I'd at least start with the all brass shells. I am specifically not advocating this trial, however (with a nod to ATLA).
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  • cpilericpileri Member Posts: 447 ✭✭✭
    edited November -1
    All brass shells?
    Say, where can a guy find those?
    I found the steel Russian ones, but no others.
    Hopefully, my buddy with the Thunder Five will lemme know how it goes!
    C-

    _________________________
    "The day that they come get your guns, is just
    one day before they use them on you!"
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