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Reboring

victorj19victorj19 Member Posts: 3,642 ✭✭✭
edited October 2011 in Ask the Experts
I have an auction I'm watching for an old SXS shotgun that has 2.5" chambers. Can it be rebored to 2 3/4"

Edit: It's not and won't be collectible.
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Comments

  • 11b6r11b6r Member Posts: 16,588 ✭✭✭
    edited November -1
    Answer is maybe. Not only is the lip in the chamber moved forward, but the forcing cone also has to move forward. Some shotguns have a sufficent thickness of metal at the breech (remember- most barrels taper) Some will simply run out of metal- right at the point that gets the highest pressure when firing.
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  • XXCrossXXCross Member Posts: 1,379 ✭✭✭
    edited November -1
    Just a "FYI" 11b6r, The highest preasure in a shotgun occurs at about one inch forward of the standing breach or bolt. From that point on, preasure declines. Refer to tests conducted by Sherman Bell and written about in the Double Gun Journal.
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  • llamallama Member Posts: 2,637 ✭✭
    edited November -1
    Might be easier/cheaper/safer to have Briley (or similar) put liners in to reduce gauge as well...
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  • SP45SP45 Member Posts: 1,758 ✭✭✭
    edited November -1
    call whoever you are going to have rebore it. give him the specifics on the gun. he will want measurements of outside diameter at certain distances, then he will tell you if it is possible. kind of like having choke tubes put in.
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  • wolfpackwolfpack Member Posts: 1,138 ✭✭✭✭
    edited November -1
    If you do not wish to try the rebore, 2.5 inch shotgun shells are still available by Kent in their Gamebore line.
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