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Ballistic ranging methods and portable systems for inclined shooting

A technology of weapons and projectiles, applied in the field of bow and arrow shooters, to achieve the effect of improving speed and aiming convenience, and reducing aiming errors

Active Publication Date: 2014-04-16
LEUPOLD & STEVENS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such adjustments are time-consuming and prone to human error
For hunters, the delays involved in such adjustments can mean the difference between a successful hit and a missed opportunity

Method used

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  • Ballistic ranging methods and portable systems for inclined shooting
  • Ballistic ranging methods and portable systems for inclined shooting
  • Ballistic ranging methods and portable systems for inclined shooting

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Embodiment Construction

[0088] figure 1 It also explains a "slanted shooting projection route". The oblique shot projection line represents a path to follow when aiming the same projectile at a target elevated relative to the vantage point VP. The height h and elevation angle α of the oblique shooting line of sight relative to the muzzle line are the same as those in the case of flat shooting. However, the oblique shot line of sight is oblique by an oblique angle θ. that is, figure 1 As shown in , the oblique shooting projection line is at a significantly larger than the apparent incidence distance R 0 intersects this angled shot at a distance of . This overshot is due to the gravitational effect, no matter what the inclination angle θ is, the gravitational force always acts in the vertical downward direction. This overshoot phenomenon and existing correction methods for it can be discussed in William T. McDonald in his paper entitled "Inclined Fire" (June 2003). The inventors of the present ...

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Abstract

A method for shooting a projectile weapon involves determining the inclination of a line of sight from a vantage point to a target and a line-of-sight range to the target, then predicting a trajectory parameter at the line-of-sight range, for a preselected projectile. Using the trajectory parameter, an equivalent horizontal range may then be determined, wherein the equivalent horizontal range is the range at which the trajectory parameter would be expected to occur if the projectile were shot from the vantage point toward a theoretical target located in a horizontal plane intersecting the vantage point. The equivalent horizontal range may be utilized to compensate for ballistic drop when shooting the projectile weapon. The method may be embodied in a handheld laser rangefinder including a memory for storing ballistic data. Systems for automatic hold over adjustment in a weapon aiming device are also disclosed.

Description

[0001] This case asserts the benefit of US Provisional Application No. 60 / 732,773, filed November 1, 2005, which is hereby incorporated by reference. technical field [0002] The present invention relates to a method and system for compensating for ballistic descent, and to a rangefinder implementing the method. Background technique [0003] External ballistics software is well known and widely used to correctly predict the delivery operation of a ballistic object, including ballistic drop and other ballistic phenomena. Common software packages include Infinity5 distributed by Sierra Bullets TM , and PRODAS, marketed by Arrow Tech Associates, Inc. TM . Many other ballistic software programs also exist. Ballistic software may contain a database of ballistic coefficients and typical muzzle velocities for various particular cartridges, from which a user may select inputs for the ballistic calculations performed by the software. Ballistic software also typically enables a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F41G1/00F41G1/38G01C3/08G01C1/00G01S19/35
CPCF41G3/02F41G1/473F41G3/08F41G3/06F41G3/142
Inventor 维多利亚·J·彼得斯堤姆·雷瑟安德鲁·W·优克瑞克·R·雷根
Owner LEUPOLD & STEVENS
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