LONG RANGE BULLET

Abstract

The invention provides a long range bullet. The bearing surface of the body of the bullet is provided with one or more annular narrows of which the combined length is at least one third of the length of the bearing surface of the bullet and which depth is between 0.005 mm up to half of the groove depth of a barrel in which the bullet is intended to shoot.

Claims

1. A bullet of which the bearing surface of the body is provided with one or more annular narrows of which the combined length is at least one third of the length of the bearing surface of the bullet and which depth is between 0.005 mm up to half of the groove depth of a barrel in which the bullet is intended to shoot.

2. A bullet as claimed in claim 1, wherein each narrow is between 0.005 and 0.025 mm deep.

3. A bullet as claimed in claim 1, wherein each narrow has a concave profile.

4. A bullet as claimed in claim 3, wherein the concave profile is selected from a circular, segmented and a complex contour.

5. A bullet as claimed in claim 1, wherein more than one narrow is provided in the bullet such that at least two groove diameter parts of the bullet are located inside a case neck.

6. A method for making a bullet, which includes removing only the amount of material that makes up the volume of friction pressure material.

7. A bullet as claimed in claim 6, wherein remaining touching bearing surfaces are 10% of the length or more of the bearing surface.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0019] The invention also has reference to flat base bullets. The trajectory of flat based bullets can also be similarly improved by employing the narrow or the recess for such a bullet.

[0020] The invention is now described by way of example with reference to the further accompanying drawings.

[0021] In the drawings:

[0022] FIG. 1 shows a profile and perspective view of one embodiment of a long range bullet, in accordance with the invention;

[0023] FIG. 2 shows dimensions of the bullet shown in FIG. 1;

[0024] FIG. 3 shows a profile and perspective view of another embodiment of a long range bullet, in accordance with the invention;

[0025] FIG. 4 shows dimensions of the bullet shown in FIG. 3;

[0026] FIG. 5 shows a profile and perspective view of another embodiment of a long range bullet, in accordance with the invention;

[0027] FIG. 6 shows dimensions of the bullet shown in FIG. 5;

[0028] FIG. 7 shows a bullet having multiple narrows, each having a depth of 0.02 mm below the groove diameter.

[0029] Referring now to the drawings, the bullet, in accordance with the invention, is generally indicated by reference numeral 10.

[0030] In the shown embodiments, each of the copper bullets 10 has a spitzer point 12, a boat tail 14, a secant ogive 16 and cylinder part 18 or bore bearing part.

[0031] FIGS. 1 and 2 shows a bullet 10 of which the cylinder part 18 of the body is provided with a single smooth concave annular narrow 20 of 7.099 mm length with a bearing surface length of 1.751 mm remaining of the cylinder 10. The depth of the narrow is 0.0155 mm along its middle.

[0032] FIGS. 3 and 4 shows a bullet 10 of which the cylinder part 18 of the body is provided with a single angled annular narrow 20 of 3.750 mm length with a bearing surface length of 5.700 mm remaining of the cylinder 10. The depth of the narrow is 0.264 mm along its middle.

[0033] FIGS. 5 and 6 shows a similar bullet 10 of which the cylinder part 18 of the body is provided with a single angled annular narrow 20 of 4.200 mm length with a bearing surface length of 5.900 mm remaining of the cylinder 10. The depth of the narrow is 0.264 mm along its middle.

[0034] FIG. 7 shows a bullet having multiple narrows, each having a depth of 0.02 mm below the groove diameter. The profile of one of the narrows is indicated by the radius of a circle defining the profile.

[0035] It shall be understood that the examples are provided for illustrating the invention further and to assist a person skilled in the art with understanding the invention and are not meant to be construed as unduly limiting the reasonable scope of the invention.