Boss 12 Bore – BEST GUN, 1911, CASED, 28”, DOCUMENTED, 6 1/2LBS.
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Boss 12 Bore – BEST GUN, 1911, CASED, 28”, DOCUMENTED, 6 1/2LBS.

Ex Tax: $15,950.00
Product Code: Boss & Co. 12ga sn6170


General Specs: Boss, Year 1911, 12 Gauge, 6lbs 8oz, Chokes SK/IC, LOP 14 3/16", DAH 2 3/16", DAC 1 9/16 Serial Number: 6170 What a great opportunity to own an icon of the London “BEST GUN” world, a vintage Boss 12 bore...

Call: 1 (616) 292-6240 To Purchase

General Specs: Boss, Year 1911, 12 Gauge, 6lbs 8oz, Chokes SK/IC, LOP 14 3/16", DAH 2 3/16", DAC 1 9/16
Serial Number: 6170

What a great opportunity to own an icon of the London “BEST GUN” world, a vintage Boss 12 bore built in the glory years of 1911.  This fine Boss side x side, sn6170, has been well maintained and is documented by the factory order sheet (copy included in the photos) noting that this gun was one of a pair built for an S.G. Pelham with 28” barrels, to include the Boss Patent single trigger, and the gun is of the assisted opening action adorned with the highly regarded Boss Rose and Scroll style engraving, still sharp and clear and executed to perfection.  As noted in the Boss advertising of the day, and continuing to be true 210 years later, Boss & Co. only built one grade of gun…THE LONDON BEST QUALITY GUN IN ALL MANNER.  Boss & Co. has been in private ownership from 1812 through today’s date, still occupying premises in the London gun corridor and employing only the finest craftsman, as has been tradition since day one.  The elegantly sculpted frame, fine beaded fences, rolled edge trigger guard, highly figured English walnut stocks, finely checkered with drop points all come together as the epitome of the LONDON BEST GUN.  Most of the Boss guns you will see for sale will exceed the $20,000 mark, and deservedly so.  There is not a gun ever more refined or properly built, all by hand no less.  This gun is in excellent mechanical condition, with strong, perfectly timed ejectors, a crisp and wholly reliable Boss single trigger, barrels tight on face and hinge pin, beautiful shiny bores, stocks solid and without cracks or splits, and balanced to perfection between the hands.  Weighing a svelte 6lbs. 8oz., she is a lively 12 bore ready for field or clays.  We have thoroughly examined and measured all attributes of this fine Boss, and she is safe and ready for generations of use and care.  The price reflects the fact that sometime along its path the chambers were lengthened to 2 ¾” and the gun was not reproofed after that alteration.  We have measured the barrel wall thickness just ahead of the chambers and have determined that the minimum barrel wall thickness is still safe to shoot the mild 1150 fps, 1 1/8 ounce loads this gun was proofed for.  In fact, the entire length of the barrels show no barrel wall thickness less than 22 thousandths, well within accepted standards.  The balance of the gun shows careful use and expected wear, with excellent wood to metal fit, clean screws, and a very well-done Purdey style leather covered pad.  See the specifications below for the information you will want to know.  The gun is cased in an attractive English leather case as shown in the photos.  If you have ever wanted to own a London BEST but couldn’t pull off the high cost, this is your chance to own a gorgeous Boss gun for thousands less than any other offered for sale.  Over time you may even choose to have us restore the wood, including re-establishing the classy drop points, and make the gun really “pop” visually.  Thanks for looking and enjoy the photos!


Barrel Length:  28"
Chokes:  .006/.010  Skeet/Improved Cylinder
Bores:  excellent, shiny
Bore Diameter:  .736/ .733
Wall Thickness:  .022/ .022
% Blue:  99%
Chambers:  2 3/4"
Ribs:  tight
Sights:  Front silver bead


Action:  tight
Ejectors or Extractors:  Ejectors- timed, strong
Receiver Condition:  65% case color, fading, thinning
Screws:  excellent
Engraving:  90% cover, clear; classic Boss rose and scroll
Trigger Type:  Boss patent single- crisp factory
Trigger Guard Color:  35% faded


Type:  Straight stock/ Splinter forend
LOP:  14 3/16"
LOP To End Of Wood:  13 1/8"
DAH:  2 3/16"
DAC:  1 9/16"
Cast:  Heel 1/8"off, Toe 3/8"off
Checkering Condition:  Very good
Butt Treatment:  leather wrapped rubber


There is a 30 day mechanical warranty on this gun. Call us for full details, or to purchase #616-292-6240. If you have any questions please call or email us, at or Thanks! Vintage Firearms Inc

Payment and Shipping

Payment Methods: Credit Card, Money Order, Certified Check, Personal Check, Wire Transfer (Advertised price reflects 3% cash discount. Actual price if paid by credit card is 3% higher.)
Inspection Period / Return Policy: Three Days from the date the item was received.
Sales Tax: Collected in AR, IL, KS, MI, PA, TN
Shipping & Insurance: Ground $250.00 within the continental U.S. Additional fees for HI & AK. We ship internationally with additional fees!  (**NOTE that most all of this is INSURANCE.  If you have your own, we could arrange your insurance covering it.)
Item Condition: Used
Requires FFL?: Yes


Please see all of our fine Vintage Firearms on this website. We have many more sxs shotguns, o/u shotguns, rifles and handguns not yet listed, check back or email us for a preview. We are a Wilson Combat dealer! Thanks for looking!

We employ full time gunsmiths on premises and can perform alterations to suit your needs within a few weeks of purchase. Common requests are: -stock bending to suit your particular requirements -addition of any specified butt pad to increase length of pull -alteration of chokes to suit your shooting preferences -lengthening of chambers and forcing cones -darkening stock color with penetrating stains -restoring any part of the gun including rust blue, charcoal blue, bone and charcoal case color, wood restoration and checkering recuts. If you like one our guns but it needs "tweaked", let us know and we can quote you a time and price. Some enthusiasts like the guns "as found" and others want them "just so". We often list guns as found and let the particular buyer choose how they want their gun to fit or look.