Firearm rifling
OwnerDaniel Kunauinventor
Life of this patent
Estimating the term…
Abstract
An improve firearm rifling is provided in which the trailing edge face of the land is significantly longer than the rifling land top surface. The trailing edge angle between the trailing edge face and the level of the groove floor surface is a much smaller angle than conventional rifling land trailing edge angle, while the leading edge angle of the disclosed embodiments may be akin to a conventional rifling leading edge angle. Due to this, the present embodiments provide a rifling land profile that is nonsymmetrical, with the trailing edge face being at a much lower angle than the leading edge face which is configured in a more upright orientation.
Claims19
A gun barrel comprising:
- a bore traversing the length of the barrel;
- a plurality of lands, each of said plurality of lands having a predefined height and a top surface;
- a plurality of grooves on the surface of the bore, each sequential pair of said plurality of grooves being separated by one of the plurality of lands;
- and
- a trailing edge face on each one of said plurality of lands;
- wherein each of the plurality of lands has a land top to trailing edge ratio of no greater than 1:8.
A method of producing a gun barrel comprising:
- providing a bore traversing the length of the barrel and having a plurality of lands, each of said plurality of lands having a predefined height and a top surface;
- providing a plurality of grooves on the surface of the bore, wherein each sequential pair of said plurality of grooves is separated by one of the plurality of lands;
- and
- providing a trailing edge face on each one of said plurality of lands;
- wherein each of the plurality of lands has a land top to trailing edge ratio of no greater than 1:8.
A gun barrel configured to shoot for hardened spherical projectiles, the gun barrel comprising:
- a bore traversing the length of the barrel;
- a plurality of reverse lands respectively formed from a plurality of grooves, each of said plurality of reverse lands having a predefined groove depth;
- a plurality of rounded portions of the barrel, wherein each sequential pair of said plurality of reverse lands is separated by one of the plurality of reverse lands;
- and
- a leading groove face and a trailing edge face for each one of said plurality of reverse lands;
- wherein each of the plurality of reverse lands has a leading to trailing edge ratio of no greater than 1:8.
Dependencies are inferred from the claim text.