초록 ▼

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 sp

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.

대표청구항 ▼

The invention claimed is: 1. A telescopic gun sight having an optical system comprising a forward objective lens element, a rear eyepiece lens element and an intervening erector lens element aligned along an optical axis constituting a line of sight and protectively confined within an elongated tub

The invention claimed is: 1. A telescopic gun sight having an optical system comprising a forward objective lens element, a rear eyepiece lens element and an intervening erector lens element aligned along an optical axis constituting a line of sight and protectively confined within an elongated tubular housing adapted to be securely affixed to a gun for shooting a bullet at a target, a transparent reticle in said optical system between said objective and erector lens elements, said reticle having distance-measuring and aiming indicia thereon, said indicia comprising a center vertical straight hairline and a center horizontal straight hairline, said center vertical and center horizontal hairlines intersecting perpendicularly, and four substantially straight horizontal range-marker hairlines of sequentially increasing incremental lengths disposed below said center horizontal hairline and substantially parallel thereto and in vertically bisected relationship with said center vertical hairline, the vertical spacing of said range-marker hairlines below said center horizontal hairline being non-evenly spaced and proportional to the drop of said bullet at regularly increased target ranges, as described by the parabolic flight of real projectiles fired in any gravitational field, wherein the spacing of said range marker hairlines below said horizontal center hairline are about 2.0, 4.8, 7.5, and 10.5 inches of subtention at 100 yards respectively but where other spacing ratios can be applied to specific other types of guns and loads for special or unique situations. 2. A telescopic gun sight having an optical system comprising a forward objective lens element, a rear eyepiece lens element and an intervening erector lens element aligned along an optical axis constituting a line of sight and protectively confined within an elongated tubular housing adapted to be securely affixed to a gun for shooting a bullet at a target, a transparent reticle in said optical system between said objective and erector lens elements, said reticle having distance-measuring and aiming indicia thereon, said indicia comprising a center vertical straight hairline and a center horizontal straight hairline, said center vertical and center horizontal hairlines intersecting perpendicularly, and four substantially straight horizontal range-marker hairlines of sequentially increasing incremental lengths disposed below said center horizontal hairline and substantially parallel thereto and in vertically bisected relationship with said center vertical hairline, the vertical spacing of said range-marker hairlines below said center horizontal hairline being non-evenly spaced and proportional to the drop of said bullet at regularly increased target ranges, as described by the parabolic flight of real projectiles fired in any gravitational field, wherein said target ranges are about 300 yards, 400 yards, 500 yards and 600 yards respectively but where other incremental ranges are appropriate for other types of guns and loads, and wherein the lengths of said range marker hairlines on either side of the center vertical hairline are about 2.06, 2.95, 4.16 and 4.86 inches of subtention at 100 yards respectively but where other lengths can be used for specific other applications. 3. A telescopic gun sight having an optical system comprising a forward objective lens element, a rear eyepiece lens element and an intervening erector lens element aligned along an optical axis constituting a line of sight and protectively confined within an elongated tubular housing adapted to be securely affixed to a gun for shooting a bullet at a target, a transparent reticle in said optical system between said objective and erector lens elements, said reticle having distance-measuring and aiming indicia thereon, said indicia comprising a center vertical straight hairline and a center horizontal straight hairline, said center vertical and center horizontal hairlines intersecting perpendicularly, and four substantially straight horizontal range-marker hairlines of sequentially increasing incremental lengths disposed below said center horizontal hairline and substantially parallel thereto and in vertically bisected relationship with said center vertical hairline, the vertical spacing of said range-marker hairlines below said center horizontal hairline being non-evenly spaced and proportional to the drop of said bullet at regularly increased target ranges, as described by the parabolic flight of real projectiles fired in any gravitational field, wherein said target ranges are about 300 yards, 400 yards, 500 yards and 600 yards respectively but where other incremental ranges are appropriate for other types of guns and loads, and wherein the lengths of said range marker hairlines on either side of the center vertical hairline are specific multiples of 2.06, 2.95, 4.16 and 4.86 inches of subtention at 100 yards respectively and where specific multiples of those lengths are indicated by some means so as to indicate specific wind speed, moving target lead, or a combination of wind speed and target lead corrections.