Reticle for telescopic gunsight and method for using
First Claim
1. In a telescopic gunsight having an optical system comprised of a forward objective lens element, a rear eyepiece lens element and intervening erector lens element, the elements being aligned upon an optical axis constituting a line of sight and protectively confined within an elongated tubular housing, the improvement comprising:
- the addition into the optical system of a transparent reticle having aiming indicia, the indicia comprising, orthogonally intersecting center vertical and center horizontal hairlines, first aiming indicia intersecting the center vertical hairline and disposed below the intersecting center vertical and center horizontal hairlines, second aiming indicia intersecting the center vertical hairline and disposed below the first aiming indicia, third aiming indicia intersecting the center vertical hairline and disposed below the second aiming indicia, and wherein the intersection of the center vertical and center horizontal hairlines, the first aiming indicia, the second aiming indicia, and the third aiming indicia, are each operable for providing first, second, third and fourth aiming points, respectively, for a first bullet trajectory at first, second, third and fourth predetermined ranges, respectively, from the telescopic gunsight, and for a second bullet trajectory at fifth, sixth, seventh and eight predetermined ranges, respectively, from the telescopic gunsight, and wherein the second aiming indicia is positioned below the intersection of the center vertical and center horizontal hairlines at about 4.5 inches, and the third aiming indicia is positioned below the intersection of the center vertical and center horizontal hairlines at about 7.5 inches, and wherein these spacing dimensions correspond to inches of subtention at 100 yards.
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0 Petitions
Accused Products
Abstract
A gunsight reticle defines a system of dimensioned indicia spaced at specific separations to improve aiming accuracy of a gun. The indicia may include perpendicularly intersecting center vertical and center horizontal hairlines, and four (or more or less) horizontal range-marker lines disposed at specific angular separations below the horizontal hairline in bisected relationship with the center vertical hairline. Spacing of the range marker lines below the center horizontal hairline is proportional to bullet drop at selected ranges, depending upon ballistic characteristics of bullet used. Relative lengths of said range-marker bars on each side of the central vertical crosshair are proportional to a specific crosswind (say 10 mph) at target range reflected by respective range marker. The method involves employing this reticle to determine distance to target, and using distance thus determined to ascertain a precise aiming point on the reticle. These indicia also have other useful characteristics that allow the shooter to easily mentally calculate corrections for crosswind, moving targets and shooting at targets that are above or below the shooter at a significant angle.
50 Citations
32 Claims
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1. In a telescopic gunsight having an optical system comprised of a forward objective lens element, a rear eyepiece lens element and intervening erector lens element, the elements being aligned upon an optical axis constituting a line of sight and protectively confined within an elongated tubular housing, the improvement comprising:
- the addition into the optical system of a transparent reticle having aiming indicia, the indicia comprising, orthogonally intersecting center vertical and center horizontal hairlines, first aiming indicia intersecting the center vertical hairline and disposed below the intersecting center vertical and center horizontal hairlines, second aiming indicia intersecting the center vertical hairline and disposed below the first aiming indicia, third aiming indicia intersecting the center vertical hairline and disposed below the second aiming indicia, and wherein the intersection of the center vertical and center horizontal hairlines, the first aiming indicia, the second aiming indicia, and the third aiming indicia, are each operable for providing first, second, third and fourth aiming points, respectively, for a first bullet trajectory at first, second, third and fourth predetermined ranges, respectively, from the telescopic gunsight, and for a second bullet trajectory at fifth, sixth, seventh and eight predetermined ranges, respectively, from the telescopic gunsight, and wherein the second aiming indicia is positioned below the intersection of the center vertical and center horizontal hairlines at about 4.5 inches, and the third aiming indicia is positioned below the intersection of the center vertical and center horizontal hairlines at about 7.5 inches, and wherein these spacing dimensions correspond to inches of subtention at 100 yards.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. In a telescopic gunsight having an optical system comprised of a forward objective lens element, a rear eyepiece lens element and intervening erector lens element, the elements being aligned upon an optical axis constituting a line of sight and protectively confined within an elongated tubular housing, the improvement comprising:
- the addition into the optical system of a transparent reticle having aiming indicia, the indicia comprising, orthogonally intersecting center vertical and center horizontal hairlines, first aiming indicia intersecting the center vertical hairline and disposed below the intersecting center vertical and center horizontal hairlines, second aiming indicia intersecting the center vertical hairline and disposed below the first aiming indicia, third aiming indicia intersecting the center vertical hairline and disposed below the second aiming indicia, and wherein the intersection of the center vertical and center horizontal hairlines, the first aiming indicia, the second aiming indicia, and the third aiming indicia, are each operable for providing first, second, third and fourth aiming points, respectively, for a first bullet trajectory at first, second, third and fourth predetermined ranges, respectively, from the telescopic gunsight, and for a second bullet trajectory at fifth, sixth, seventh and eight predetermined ranges, respectively, from the telescopic gunsight, and wherein the first, second and third aiming indicia axe spaced from the intersection of the center vertical and center horizontal hairlines at about 2.0, 4.8 and 7.5 inches, respectively, and wherein these spacing dimensions correspond to inches of subtention at 100 yards.
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11. In a telescopic gunsight having an optical system comprised of a forward objective lens element, a rear eyepiece lens element and intervening erector lens element, the elements being aligned upon an optical axis constituting a line of sight and protectively confined within an elongated tubular housing, the improvement comprising:
- the addition into the optical system of a transparent reticle having aiming indicia, the indicia comprising, intersecting center vertical and center horizontal hairlines defining a center point, first aiming indicia intersecting the center vertical hairline and disposed below the intersecting center vertical and center horizontal hairlines, second aiming indicia intersecting the center vertical hairline and disposed below the first aiming indicia, third aiming indicia intersecting the center vertical hairline and disposed below the second aiming indicia, and wherein the intersection of the center vertical and center horizontal hairlines, the first aiming indicia, the second aiming indicia, and the third aiming indicia, are each operable for providing first, second, third and fourth aiming points, respectively, for a bullet trajectory, and wherein the distances of separation of the first, second and third aiming indicia from the center point are such as to cause the sequential spacing between them to progressively increase, and wherein the second, third and fourth aiming points are positioned and operable for providing aiming points at ranges of approximately 200, 300, 400 and 500 yards, respectively, and wherein the second aiming indicia is positioned below the intersection of the center vertical and center horizontal hairlines at about 4.5 inches, and the third aiming indicia is positioned below the intersection of the center vertical and center horizontal hairlines at about 7.5 inches, and wherein these spacing dimensions correspond to inches of subtention at 100 yards.
- View Dependent Claims (12, 13)
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14. A reticle for use in a telescopic gunsight, the reticle comprising:
- intersecting center vertical and center horizontal hairlines, first aiming indicia intersecting the center vertical hairline and disposed below the intersecting center vertical and center horizontal hairlines, second aiming indicia intersecting the center vertical hairline and disposed below the first aiming indicia, third aiming indicia intersecting the center vertical hairline and disposed below the second aiming indicia, and wherein the intersection of the center vertical and center horizontal hairlines, the first aiming indicia, the second aiming indicia, and the third aiming indicia, are each operable for providing a set of aiming points, respectively, for a first bullet trajectory at a first set of predetermined ranges, respectively, from the reticle, and for providing the set of aiming points, respectively, for a second bullet trajectory at a second set of predetermined ranges, respectively, from the reticle, and wherein the first set of predetermined ranges is different than the second set of predetermined ranges, and wherein the second aiming indicia is positioned below the intersection of the center vertical and center horizontal hairlines at about 4.5 inches, and the third aiming indicia is positioned below the intersection of the center vertical and center horizontal hairlines at about 7.5 inches, and wherein these spacing dimensions correspond to inches of subtention at 100 yards.
- View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A reticle for use in a telescopic gunsight, the reticle comprising:
- intersecting center vertical and center horizontal hairlines, first aiming indicia intersecting the center vertical hairline and disposed below the intersecting center vertical and center horizontal hairlines, second aiming indicia intersecting the center vertical hairline and disposed below the first aiming indicia, third aiming indicia intersecting the center vertical hairline and disposed below the second aiming indicia, and wherein the intersection of the center vertical and center horizontal hairlines, the first aiming indicia, the second aiming indicia, and the third aiming indicia, are each operable for providing a set of aiming points, respectively, for a first bullet trajectory at a first set of predetermined ranges, respectively, from the reticle, and for providing the set of aiming points, respectively, for a second bullet trajectory at a second set of predetermined ranges, respectively, from the reticle, and wherein the first set of predetermined ranges is different than the second set of predetermined ranges, and wherein the first, second and third aiming indicia are spaced from the intersection of the center vertical and center horizontal hairlines at about 2.0, 4.8 and 7.5 inches, respectively, and wherein these spacing dimensions correspond to inches of subtention at 100 yards.
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26. A gun scope comprising:
- an elongated tubular structure, comprising, a forward objective lens element, a rear lens element, and a reticle aligned upon an optical axis with the forward and rear lens elements constituting a line of sight, the reticle comprising, orthogonally intersecting center vertical and center horizontal hairlines, first aiming indicia intersecting the center vertical hairline and disposed below the intersecting center vertical and center horizontal hairlines, second aiming indicia intersecting the center vertical hairline and disposed below the first aiming indicia, third aiming indicia intersecting the center vertical hairline and disposed below the second aiming indicia, and wherein the intersection of the center vertical and center horizontal hairlines, the first aiming indicia, the second aiming indicia, and the third aiming indicia, are each operable for providing first, second, third and fourth aiming points, respectively, for a first bullet trajectory at first, second, third and fourth predetermined ranges, respectively, from the scope, and for a second bullet trajectory at fifth, sixth, seventh and eight predetermined ranges, respectively, from the scope, and wherein the second aiming indicia is positioned below the intersection of the center vertical and center horizontal hairlines at about 4.5 inches, and the third aiming indicia is positioned below the intersection of the center vertical and center horizontal hairlines at about 7.5 inches, and wherein these spacing dimensions correspond to inches of subtention at 100 yards.
- View Dependent Claims (27, 28)
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29. A gun scope comprising:
- an elongated tubular structure, comprising, a forward objective lens element, a rear lens element, and a reticle aligned upon an optical axis with the forward and rear lens elements constituting a line of sight, the reticle comprising, intersecting center vertical and center horizontal hairlines, first aiming indicia intersecting the center vertical hairline and disposed below the intersecting center vertical and center horizontal hairlines, second aiming indicia intersecting the center vertical hairline and disposed below the first aiming indicia, third aiming indicia intersecting the center vertical hairline and disposed below the second aiming indicia, and wherein the intersection of the center vertical and center horizontal hairlines, the first aiming indicia, the second aiming indicia, and the third aiming indicia, are each operable for providing a set of aiming points, respectively, for a first bullet trajectory at a first set of predetermined ranges, respectively, from the scope, and for providing the set of aiming points, respectively, for a second bullet trajectory at a second set of predetermined ranges, respectively, from the scope, and wherein the first set of predetermined ranges is different than the second set of predetermined ranges, and wherein the second aiming indicia is positioned below the intersection of the center vertical and center horizontal hairlines at about 4.5 inches, and the third aiming indicia is positioned below the intersection of the center vertical and center horizontal hairlines at about 7.5 inches, and wherein these spacing dimensions correspond to inches of subtention at 100 yards.
- View Dependent Claims (30, 31, 32)
Specification