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Proof history of my Joseph Lang sidelock #657106 02/02/25 09:11 AM
Joined: Feb 2008 Posts: 1,233 Likes: 62 Tennessee Vol423 OP Sidelock
OP Vol423 Sidelock Joined: Feb 2008 Posts: 1,233 Likes: 62 Tennessee	When I bought this gun I assumed it was a reproofed original barrel, as there are new proofs over old ones. But the barrels both have significant choke, whereas only the left barrel is marked choke on the flats. The undersides of the barrels are marked J.L&S, which I assume is for Joseph Lang & Son. Could this have been sleeved by Lang and reproofed to modern standards and not marked Sleeved? Complete photo spread of the gun on gunbroker auction 1087140906. Photo of the flats here: https://postimg.cc/gallery/2bcVVWf Last edited by Vol423; 02/02/25 09:16 AM.

Re: Proof history of my Joseph Lang sidelock Vol423 #657110 02/02/25 09:33 AM
Joined: Oct 2019 Posts: 312 Likes: 92 UK Imperdix Sidelock
Imperdix Sidelock Joined: Oct 2019 Posts: 312 Likes: 92 UK	Looks like 2x reproofs !!! Plenty been removed to leave choke in perhaps????
	1 member likes this: Ted Schefelbein

Re: Proof history of my Joseph Lang sidelock Imperdix #657111 02/02/25 09:40 AM
Joined: Jan 2002 Posts: 10,825 Likes: 1448 mpls, mn. Ted Schefelbein Sidelock
Ted Schefelbein Sidelock Joined: Jan 2002 Posts: 10,825 Likes: 1448 mpls, mn.	Originally Posted by Imperdix Looks like 2x reproofs !!! Plenty been removed to leave choke in perhaps???? That would be my bet, too. Best, Ted

Re: Proof history of my Joseph Lang sidelock Vol423 #657132 02/02/25 01:02 PM
Joined: Jan 2006 Posts: 9,805 Likes: 481 AZ but dreaming of KS Drew Hause Sidelock
Drew Hause Sidelock Joined: Jan 2006 Posts: 9,805 Likes: 481 AZ but dreaming of KS	The bore marks indicate 3 provings: 1. 13/1 = .719 - .728" 1925 - 1954 2. .729 1954 - 1989 3. 18.7 = .736"post-1989 At the lower L is the London Proof date It still has 2 1/2" / 65 mm chambers The post-1989 proof would be to the higher CIP pressures, but 3 TONS was for a max. service pressure of about 9,000 psi. It passed CIP proof, but the wall thicknesses should be carefully measured https://sites.google.com/a/damascusknowledge.com/www/home

Re: Proof history of my Joseph Lang sidelock Drew Hause #657140 02/02/25 02:34 PM
Joined: Jan 2002 Posts: 10,825 Likes: 1448 mpls, mn. Ted Schefelbein Sidelock
Ted Schefelbein Sidelock Joined: Jan 2002 Posts: 10,825 Likes: 1448 mpls, mn.	Originally Posted by Drew Hause The post-1989 proof would be to the higher CIP pressures, but 3 TONS was for a max. service pressure of about 9,000 psi. It passed CIP proof, but the wall thicknesses should be carefully measured Might be the best free tip of the day. Best, Ted _____________________________________________________________________ Might be a free gun when that deed is done, however.

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