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Bore diameter #623026 12/03/22 02:55 PM
Joined: Jul 2014 Posts: 70 Likes: 2 Austin Hawthorne OP Sidelock
OP Austin Hawthorne Sidelock Joined: Jul 2014 Posts: 70 Likes: 2	One of my damascus barreled shotguns has the markings "17.6" stamped on the bottom of the barrels. I assume this is the diameter of the barrels bore. Does anyone know what that translates to in ".0000"?

Re: Bore diameter Austin Hawthorne #623028 12/03/22 03:02 PM
Joined: Jan 2002 Posts: 13,146 Likes: 1146 somwers in Jawja Stanton Hillis Sidelock
Stanton Hillis Sidelock Joined: Jan 2002 Posts: 13,146 Likes: 1146 somwers in Jawja	17.6 mm equals .6929" May God bless America and those who defend her.

Re: Bore diameter Austin Hawthorne #623029 12/03/22 03:30 PM
Joined: Jan 2006 Posts: 9,412 Likes: 313 AZ but dreaming of KS Drew Hause Sidelock
Drew Hause Sidelock Joined: Jan 2006 Posts: 9,412 Likes: 313 AZ but dreaming of KS	Which likely indicates the muzzle diameter/choke. Is there a 18.4 = .724" next to it? A pic would be great After 1924 the bore was marked and CHOKE for a muzzle constriction > 2mm = .008" https://sites.google.com/a/damascusknowledge.com/www/home

Re: Bore diameter Austin Hawthorne #623038 12/03/22 04:45 PM
Joined: Jul 2014 Posts: 70 Likes: 2 Austin Hawthorne OP Sidelock
OP Austin Hawthorne Sidelock Joined: Jul 2014 Posts: 70 Likes: 2	The bore dimension reads .0719 tapering to .0712 4 inches back from the muzzle. Then it is jug choked. There is also the number 13 stamped on the barrel. This gun is the "RIVAL #6" that I posted a question about on the Parker site. It has the ELG without the crown above the oval. I would post a picture if I could.

Re: Bore diameter Austin Hawthorne #623060 12/03/22 10:04 PM
Joined: Jan 2002 Posts: 9,741 Likes: 743 mpls, mn. Ted Schefelbein Sidelock
Ted Schefelbein Sidelock Joined: Jan 2002 Posts: 9,741 Likes: 743 mpls, mn.	It was proofed as a 13 gauge, very common in England, in that era. Seems like it still is 13, per your measurement. But, I’m thinking the ELG mark is Belgian, not English. Send me the photo, I’ll post it for you. My email is in my profile. Best, Ted

Re: Bore diameter Austin Hawthorne #623074 12/04/22 11:42 AM
Joined: Jul 2014 Posts: 70 Likes: 2 Austin Hawthorne OP Sidelock
OP Austin Hawthorne Sidelock Joined: Jul 2014 Posts: 70 Likes: 2	Thanks for the offer to post photos Ted but I do not have a digital camera or smart phone. It is Belgium and appears to be taper bored up to the jug choking. The 17.6 is what puzzles me if that translates to .6929

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