doublegunshop.com - home Forums General Discussion DoubleGun BBS @ doublegunshop.com Help identifying Spanish SXS

November
S	M	T	W	T	F	S
						1
2	3	4	5	6	7	8
9	10	11	12	13	14	15
16	17	18	19	20	21	22
23	24	25	26	27	28	29
30

Who's Online Now

5 members (meprof57, MattH, prairie ghost, FlyChamps, SamW), 456 guests, and 7 robots.

Key: Admin, Global Mod, Mod

Forum Statistics

Forums10

Topics39,561

Posts562,803

Members14,597

Most Online9,918
Jul 28th, 2025

Print Thread

Help identifying Spanish SXS #667000 11/04/25 10:38 AM
Joined: Nov 2025 Posts: 1 Chittenango NY 13037 LibertyForge_USA OP Boxlock
OP LibertyForge_USA Boxlock Joined: Nov 2025 Posts: 1 Chittenango NY 13037	Good morning this is my first time posting on this platform but hoping to gain a little knowledge. I've got what I believe to be a late 20s to early 30's Eibar shotgun I'm looking to source a barrel for and I'm having trouble verifying the original gauge. 12 gauge is too big so I would assume it's either a .410 bore or maybe a 28 gauge? Hoping somebody on here is well versed in these old Spanish guns, I've attached pictures of the makers marks and some measurements. Last edited by LibertyForge_USA; 11/04/25 10:42 AM.

Re: Help identifying Spanish SXS LibertyForge_USA #667007 11/04/25 12:33 PM
Joined: Feb 2002 Posts: 1,916 Likes: 218 Kutter Sidelock
Kutter Sidelock Joined: Feb 2002 Posts: 1,916 Likes: 218	Mr google says : The "JB" is the maker mark of 'Armas Bost', formerly under the name of 'Jose Bolumburu'.

Re: Help identifying Spanish SXS LibertyForge_USA #667008 11/04/25 01:11 PM
Joined: Jan 2006 Posts: 9,777 Likes: 467 AZ but dreaming of KS Drew Hause Sidelock
Drew Hause Sidelock Joined: Jan 2006 Posts: 9,777 Likes: 467 AZ but dreaming of KS	There is a date code on the barrel flats and the bore in mm just forward of the flats; and possibly stars indicating the choke .410 = 10.4 mm; 28 gauge = 13.84 mm 1965 catalog repro https://cornellpubs.com/product/379...sTqM6UfPMSz39-LEtXUOqO6eDjYWKLPOtNbRcOJk https://sites.google.com/a/damascusknowledge.com/www/home

Re: Help identifying Spanish SXS LibertyForge_USA #667009 11/04/25 01:22 PM
Joined: Feb 2012 Posts: 189 Likes: 36 Woodstock, GA MattH Sidelock
MattH Sidelock Joined: Feb 2012 Posts: 189 Likes: 36 Woodstock, GA	I would take it that the c.410.50 on the action flat indicates it was a .410ga chambered for 2 inch (50mm) shells. ----MattH President, Ga. Vintagers

Re: Help identifying Spanish SXS LibertyForge_USA #667010 11/04/25 02:05 PM
Joined: Jan 2006 Posts: 9,777 Likes: 467 AZ but dreaming of KS Drew Hause Sidelock
Drew Hause Sidelock Joined: Jan 2006 Posts: 9,777 Likes: 467 AZ but dreaming of KS	Or an odd way of expressing the barrel weight at the time of proof 1.41050 Kg = 3.1096# https://sites.google.com/a/damascusknowledge.com/www/home

Link Copied to Clipboard

Updated every minute of everyday!

Copyright (c) 1993 - 2024 doublegunshop.com. All rights reserved. doublegunshop.com - Bloomfield, NY 14469. USA These materials are provided by doublegunshop.com as a service to its customers and may be used for informational purposes only. doublegunshop.com assumes no responsibility for errors or omissions in these materials. THESE MATERIALS ARE PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANT-ABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT. doublegunshop.com further does not warrant the accuracy or completeness of the information, text, graphics, links or other items contained within these materials. doublegunshop.com shall not be liable for any special, indirect, incidental, or consequential damages, including without limitation, lost revenues or lost profits, which may result from the use of these materials. doublegunshop.com may make changes to these materials, or to the products described therein, at any time without notice. doublegunshop.com makes no commitment to update the information contained herein. This is a public un-moderated forum participate at your own risk.

Note: The posting of Copyrighted material on this forum is prohibited without prior written consent of the Copyright holder. For specifics on Copyright Law and restrictions refer to: http://www.copyright.gov/laws/ - doublegunshop.com will not monitor nor will they be held liable for copyright violations presented on the BBS which is an open and un-moderated public forum.

Responsive Width:

PHP: 7.0.33-0+deb9u11+hw1 Page Time: 0.163s Queries: 24 (0.077s) Memory: 0.8133 MB (Peak: 1.9014 MB) Data Comp: Off Server Time: 2025-11-05 02:28:04 UTC
Valid HTML 5 and Valid CSS