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Joined: Jun 2008
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Sidelock
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Curiouser and curiouser as Alice would say! The grouse shoot referred to by Walsingham took place in 1872. Maybe he got his facts mixed up when recalling the incident. Lagopus..

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Walsinghams record was shot on August 30th 1888 with breechloaders.
He did shoot 842 on August 28th 1872 but with 2 muzzleloaders and 2 breechloaders.
HTH.

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thx again everyone.......the combined knowledge on this forum is outstanding.

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Question for Greener4me

first let me say thx for all your help. In your previous post you mention 13 as bore size and that the barrels are almost out of proof. My understanding is that given the age of this gun, the 13 stamp translates into an expected bore size of .710, therefore making this gun out of proof, given that the bores now measure .727.

Do i have the correct information or am i missing something.?

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13 means at proof a plug gauge of 0.710" diameter (but not one of 0.719") would enter the bore to a depth of 9".
As previously said, the gun needs careful measurement of the barrel wall thickness from breech to muzzle, esp. at the end of the chamber.

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Rules of Proof show 13 as .710, so quite correct.
" " " " 12 " .729.. so presumably a 13 goes "out of proof" when/if it measures at the next gauge upwards.
Also not unknown for different gunsmiths to get a variation of .002 +/_ when measuring the same gun! (Been my experience anyway). I don't know which way this variation of measurement works - as the vendor may say "just in" and the buyer's adviser may say "just out" of proof !

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barrel wall thickness is as follows

right barrel 9 inches from muzzle min .035
right barrel 9 inches from chamber min .065

left barrel 9 inches from muzzle min .032
left barrel 9 inches from chamber min .064

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Just to muddy the waters still further, when this gun was proofed in 1872, fractional proof sizes had not been introduced so the 13 proof size stretched from 0.710" to 0.728".
The proof laws that applied when the gun WAS LAST PROOFED (or reproofed) is that which is applied in ascertaining whether a gun is in or out of proof.
So a gun marked 13 proofed in 1874 (before the fractional sizes were introduced) is still in proof at 0.728" but a gun proofed in 1875 (when the fractional sizes had been introduced) would only be in proof up to a bore size of 0.719".
Enjoy!

Last edited by Toby Barclay; 07/13/20 04:22 PM.
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Very interesting Toby, I thank you for that additional information.
It would appear then that my Scott DOM 1872, would still be considered "in proof" with a bore measurement of .727, add to that the wall thickness measurements and the overall condition of the the tubes.

I think I'll shoot a pheasant with her this year.

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