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Re: Wha do you make of these proof marks? Geoff Roznak #672065 02/26/26 06:58 PM
Joined: Dec 2001 Posts: 7,467 Likes: 774 Colorado SKB Sidelock
SKB Sidelock Joined: Dec 2001 Posts: 7,467 Likes: 774 Colorado	12C inside the device and 1&1/8" oz proofs, it was a 2&1/2" gun originally. If it was a 2&3/4" gun it would be marked 12LC inside the diamond or 1&1/4oz proof, possibly both. Ed is always good for a laugh. It most definitely matters what your gun was originally designed to shoot and how it was proofed. Those of us that have bought, sold and collected vintage British guns know that....and then there is Ed. www.bertramandco.com consignments, imports, sales
	1 member likes this: Geoff Roznak

Re: Wha do you make of these proof marks? Geoff Roznak #672077 02/27/26 07:40 AM
Joined: Jun 2006 Posts: 3,340 Likes: 470 Great Lakes region ClapperZapper Sidelock
ClapperZapper Sidelock Joined: Jun 2006 Posts: 3,340 Likes: 470 Great Lakes region	I’m going with measuring error. I’m thinking that somebody imported a gun, and measured the chamber length with a crude drop in device or 6 inch ruler, rather than getting out a Hosford‘s. Usually, the simplest explanation is. Out there doing it best I can.
	1 member likes this: Geoff Roznak

Re: Wha do you make of these proof marks? Geoff Roznak #672081 02/27/26 08:28 AM
Joined: Jan 2006 Posts: 9,884 Likes: 521 AZ but dreaming of KS Drew Hause Sidelock
Drew Hause Sidelock Joined: Jan 2006 Posts: 9,884 Likes: 521 AZ but dreaming of KS	1896 Rules 1904 Revision, and as said 1 1/8 oz. would be for 2 1/2" chambers After 1925 the chamber length was marked After 1954 in both inches and mm and simply 12 in the diamond without the C or LC https://sites.google.com/a/damascusknowledge.com/www/home
	1 member likes this: Geoff Roznak

Re: Wha do you make of these proof marks? Geoff Roznak #672082 02/27/26 08:55 AM
Joined: Dec 2001 Posts: 7,467 Likes: 774 Colorado SKB Sidelock
SKB Sidelock Joined: Dec 2001 Posts: 7,467 Likes: 774 Colorado	I had not recalled correctly that the LC was only for chamber over 3" long. www.bertramandco.com consignments, imports, sales

Re: Wha do you make of these proof marks? Drew Hause #672091 02/27/26 11:48 AM
Joined: Jan 2002 Posts: 557 Likes: 59 Further Up North, WI Geoff Roznak OP Sidelock
OP Geoff Roznak Sidelock Joined: Jan 2002 Posts: 557 Likes: 59 Further Up North, WI	Originally Posted by Drew Hause 1896 Rules 1904 Revision, and as said 1 1/8 oz. would be for 2 1/2" chambers After 1925 the chamber length was marked After 1954 in both inches and mm and simply 12 in the diamond without the C or LC Thanks Drew.

Re: Wha do you make of these proof marks? Geoff Roznak #672106 02/28/26 02:36 AM
Joined: Jan 2002 Posts: 10,348 Likes: 159 nh mostly ed good Sidelock
ed good Sidelock Joined: Jan 2002 Posts: 10,348 Likes: 159 nh mostly	well, once again, to beat the dead horse... all this data, insults, innuendos and pontifications, with lots of words, but little substance, aka smoke and mirrors.... still begs the question... what commercially available load, if any would be potentially safe for this or any other gun... key to making a guess as to where to start, one must know barrel wall thicknesses in front of chambers... Last edited by ed good; 02/28/26 03:15 AM. keep it simple and keep it safe...

Re: Wha do you make of these proof marks? Geoff Roznak #672107 02/28/26 03:01 AM
Joined: Jan 2002 Posts: 10,348 Likes: 159 nh mostly ed good Sidelock
ed good Sidelock Joined: Jan 2002 Posts: 10,348 Likes: 159 nh mostly	because? because you say... well, cause dats watt doc drew taught us years ago... de peak o de pressure curve is directly in front o de chamba... everything else is down hill from der... doc drew, pls be so kind as to post your now famous pressure curve charts here... it would be so lovely to view them once again, whilst enjoyin ah cuppa wid ah bis cuit or two... ah bis cuit or two...ah bis quit or two... makes the world go round... la la la.... ZZZZZZZZZZZZZ Last edited by ed good; 02/28/26 03:26 AM. keep it simple and keep it safe...

Re: Wha do you make of these proof marks? ed good #672140 02/28/26 08:31 PM
Joined: Jan 2002 Posts: 557 Likes: 59 Further Up North, WI Geoff Roznak OP Sidelock
OP Geoff Roznak Sidelock Joined: Jan 2002 Posts: 557 Likes: 59 Further Up North, WI	Originally Posted by ed good what commercially available load, if any would be potentially safe for this or any other gun... To repeat: We'll never know. I didn't buy the gun.

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