This invention relates generally to sighting devices, and more particularly to a sighting device for calibration of a scope attached to a rifle, compound bow, or crossbow so as to properly align the scope crosshairs or dot to the projectile's impact point on the target at which the scope and hunting device is aimed.
In 2004, there were 14,283,920 deer hunters in the United States according to the Deer Hunters Almanac. Of these, 11,100,287 were gun hunters and 3,183,643 were archery hunters. One reason that more deer hunters do not use compound bow or crossbows may be the relative complexity of bow hunting equipment as compared to gun hunting equipment. Another reason most deer hunters prefer to use guns is that shots taken with bows often miss their targets, resulting in lost arrows or wounded (not killed) game. Rifles with scopes however, when properly sighted in have been a more efficient means of killing the animal being hunted. Sighting the scope on rifles, compound bows, and crossbows during hunting or sighting in these weapons prior to an actual hunt can be a difficult endeavor
Various devices have been proposed in the art for aiding a hunter in sighting or targeting a hunted animal. Sighting accessories may be mounted to a rifle or crossbow and to the frame or strings of a compound bow for use by the hunter. Rifles, crossbows, and compound bows and, more particularly, their targeting scopes, may be “sighted in” by adjusting windage and elevation settings such that the hunter can achieve greater accuracy during a hunt although this is often a trial and error task. Once properly sighted, however, the hunter has confidence that he will hit whatever he is aiming at when he pulls the trigger or releases his arrow. Although the prior devices and proposals are assumably effective for their intended purposes, the existing devices do not provide a virtually guaranteed means for targeting and hitting a deer unless the device is properly sighted in.
Paper targets were created to give the hunter a target to aim and shoot at, providing a point of aim (bulls-eye) and enough width and length so that when he is aiming at the target bulls-eye, shoots and misses, he sees where the projectile has struck the target. He then has to correctly calculate the distance from where he was aiming to where the projectile struck the target to properly align the scope settings to the projectile's impact point on the target.
Targets come with different targeting designs, some with grid patterns representing one inch measurements and other designs for shooting game. Mechanical and laser bore sighting devices were created to aid the hunter to represent the direction the projectile will travel to the intended target, but does not give the actual terms of measurement, relative to the settings stated by the scope manufacturer. Specifically, the windage and elevation setting adjustments for the scope, when being adjusted, “click” when being adjusted. The scope manufacturer's specifications for sighting in will refer to each “click” sound being a unit of measurement which moves the crosshairs or dot to align with the projectiles impact point.
Once the hunter calculates the distance between the bulls-eye being aimed at and the projectiles impact point, he has to divide that distance by the “click” terms of measurement provided by the scope manufacturer. When this calculation is correctly completed and adjustments made to the scope windage and elevation settings, the scope sights will be properly aligned to the projectile's impact point.
Therefore it would be desirable to have a sighting device and method for use with a rifle, compound bow and a crossbow that visually identifies and calculates the exact units or “clicks” of measurement specified by the scope manufacturer, to align the scope crosshairs or dot to the projectile's impact point.
A sighting device according to a preferred embodiment of the present invention includes a sighting target having a generally planar piece of material with horizontal and vertical indicia that divide the material into four quadrants. Two upper quadrants are separated from two lower quadrants by the horizontal indicia and two left side quadrants are separated from two right side quadrants by the vertical indicia. The juncture of the channels defines a bulls-eye, the bulls-eye also having indicia indicative of a target. The target may be included in a kit having various tools for measuring lateral and vertical distances between an actual impact area and the bulls-eye that indicate appropriate numbers of clicks to be made to a sighting scope mounted to a weapon such as a rifle, compound bow, or crossbow.
Therefore, a general object of the present invention is to provide a sighting device and method that produces a visual indication and calculation of the distance between where a hunter is aiming a rifle, compound bow, or crossbow and the actual impact point of a projectile being fired therefrom.
Another object of the present invention is to provide a sighting device and method, as aforesaid, that is associated with the scope manufacturer's specifications of a relative distance that one “click” represents on a shooting target.
Still another object of the present invention is to provide a sighting device and method, as aforesaid, that facilitate a visual calculation of the exact number of “click” adjustments to adjust elevation settings to projectile impact point.
Yet another object of the present invention is to provide a sighting device and method, as aforesaid, that facilitate a visual calculation of the exact number of “click” adjustments to adjust windage settings to projectile impact point.
A further object of the present invention is to provide a sighting device and method, as aforesaid, that facilitates a visual calculation of the exact number of “click” adjustments to adjust elevation settings simultaneously to the projectile impact point
A particular object of the present invention is to provide a sighting device and method, as aforesaid, that facilitates a visual calculation the exact number of “click” adjustments to adjust elevation and windage settings to projectile impact point by using a retractable tape housed in a compact unit that can be stored in a jacket or pants pocket.
Yet another object of the present invention is to provide a sighting device and method, as aforesaid, that facilitates a visual calculation the exact number of “click” adjustments to adjust elevation and windage settings to projectile impact point by using an electronic measuring device.
Other objects and advantages of the present invention will become apparent from the following description tacked in connection with the accompanying drawings, wherein is set forth by way of illustration and example, embodiments of this invention
A sighting device according to a preferred embodiment of the present invention will now be described with reference to
At the juncture/intersection of the horizontal 14 and vertical 12 divider indicia as well as convergence of all four quadrants, an “ideal impact zone” or “bulls-eye” 28 may be imprinted. The bulls-eye represents the position on the target that indicates, if struck by a bullet or arrow during a sighting shot, that the scope is sighted in and need not be further adjusted for windage or elevation. Additional indicia (not shown), such as a circle or a plurality of concentric circles arranged radially about the juncture between horizontal 14 and vertical 12 channels may also be imprinted to designate the bulls-eye and points close to it.
The preferred embodiment of the present invention may include one or more specialized measuring devices for inclusion as a kit for use with the target 10. One such measuring device includes a measuring square 40 having a construction similar to a traditional builder's square except as specifically described below. More particularly, the measuring square 40 includes a first section 42 coupled to a second section 44 situated at a 90 degree angle relative to the second section such that the two sections are perpendicular and at a right angle to one another (
Preferably, the measuring square 40 includes indicia representing one or more measuring scales, each associating a predetermined distance with a number of clicks of a scope in order to properly adjust a windage or elevation adjustment member so that a next targeting shot will hit the target bulls-eye. Each scale is based on a targeting shot being made from a predetermined distance from the target, such as 50 yards or 100 yards. For example, a first scale 52 (measurement/tick marks and numeric indicia) nearest the inner edge 46 may be associated with the condition of sighting a scope at 100 yards from the target and the number of clicks per ⅛ inch increment on the target. For example, a distance of ⅛″ between measurement marks may require adjustment of one “click” of a respective scope elevation or windage adjustment member 104. A second scale 56 adjacent the outer edge 48 may be associated with the condition of sighting a scope at 100 yards from the target and the number of clicks per ½ inch increment on the target. Still further, a third scale 54 may be situated along the channel 50 and intermediate the first and second scales 52, 54 that is associated with the condition of sighting a scope at 100 yards from the target and number of clicks per ¼ inch increments on the target. Preferably, every scale on a respective measuring square would be associated with a targeting shot being made from the same distance. In other words, a separate square is provided for targeting from 25 yards, 50 yards, 100 yards, etc. It is understood that the measuring indicia on the vertical section may be associated with adjustment of the windage adjustment whereas the measuring indicia on the horizontal section may be associated with adjustment of the elevation adjustment member. It is also understood that the distance between measurement marks of each scale is different from the distance between marks of each other scale.
With further regard to the scales provided on each square 40, each scale is based on an equation determined by a manufacturer's specification, it being appreciated that one of the three scales is likely to be associated with virtually any and every scope currently being sold. In other words, different scopes use one of the scales represented herein (e.g. ⅛″, ¼″, ½″). Accordingly, a user just needs to know which scale is appropriate for the scope being sighted and then utilize an appropriate square to adjust the sighting buttons on a scope 100 as indicated at an appropriate tick mark on the chosen square.
It is contemplated that the measuring square 40 may be supplemented or substituted by one or more rulers 60 also having one or more scale indicia that has been predetermined according to a manufacturer's specifications for a particular scope at a predetermined distance (e.g. 100 yards) (
Another measuring device that may be included in a kit of the present invention is a retractable measuring tape 70 (
Still another measuring device that may be included in a kit of the present invention is an electronic measurement device such as an electronic caliper device 80 that may or may not employ a laser beam (
In use, a target 10 is positioned at a desired distance, say, 25, 50, or 100 yards from where a targeting shot will be taken. This distance will be according to a scope manufacturer's specifications. Then, a shooter of a rifle, compound bow, or crossbow may aim and actuate/fire the respective shooting device (i.e. a hunting weapon) at the target 10 from the appropriate distance, being careful to use the weapon's scope to aim at the bulls-eye of the target 10. After taking a shot, the shooter may retrieve and/or examine the target 10 and identify which quadrant thereof the shot impacted (
It is understood that while certain forms of this invention have been illustrated and described, it is not limited thereto except insofar as such limitations are included in the following claims and allowable functional equivalents thereof.
This non-provisional patent application claims the benefit of provisional application Ser. No. 61/366,237 filed on Jul. 21, 2010, titled “Firearm and Archery Sighting Device.”
| Number | Date | Country | |
|---|---|---|---|
| 61366237 | Jul 2010 | US |