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Weatherby serial number dating

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Photo Ball Screw - See Worm Ball & Shot Gun - A firearm, built to be able to shoot either a single projectile or a load of shot pellets; generally built heavier than their shotgun counterparts and fitted with rudimentary rifle sights; often either with robust rifling just at the muzzle or with Lancaster Oval Boring.

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Banknote Engraving - See Bulino Bar - The portion of a break-open gun's action extending forward from the bottom of the standing breech, supporting the hingepin.Photo Arcaded Fences- Fences on a side-by-side gun decorated with a series of engraved crescents. Photo Arrowheads - A signature stock-carving detail of Robert G Owen, renown English-born American stockmaker, active 1920s - 1950s.Photo Assault Weapon - A vague, emotional term, used to instill fear into the ignorant, by persons with political agenda.Annulus - A tiny circular recess at the base of a cartridge case surrounding the primer pocket.Recoil from fired cartridges invariably impress a discernable ring on the breech or bolt face of a firearm, providing some evidence of the amount of use it has seen.Photo Aperture Sight - See Peep Sight APUN - Action Patent Use Number.

Under patent law during the period of greatest creativity in the British firearms trade (circa 1860 - 1910) gunmakers typically numbered each patented component with its own number of use of the patent (not the number of the patent itself as registered with the patent office as in the USA)---irrespective of the serial number of the firearm.

Anson Forend Release - A catch for securing the forend to the barrels of a break-open gun, operated, via a longitudinal rod, by a pushbutton exposed at the very tip of the forend. Anvil - A small metal block, inside a Boxer primer, against which the blow of the firing pin causes the priming compound to be pinched sharply---and thus detonated.

In the Berdan system, the anvil is built into the cartridge case's primer pocket.

While there is no proof law in the USA, in England, to ream out the bore of a shotgun by more than 8 thousandths of an inch would render it out of proof and illegal to sell without passing re-proof.

Backstrap - Rear, metal, part of a handgun---which together with the frontstrap, provides a mounting frame for the grips.

Photo Ampersand "&" - A mark used by Colt to indicate a revolver having been returned to the factory for repair or refinishing.