APPARATUS AND METHOD FOR CALCULATING AIMING POINT INFORMATION FOR RIFLE SCOPES
First Claim
1. A hand-held electronic ballistics calculator for use by a sport shooter with a firearm having a barrel for firing a predetermined cartridge containing a bullet, said firearm equipped with a telescopic gunsight mounted adjacent to said barrel, said hand-held electronic ballistics calculator for accurately computing targeting information needed to hit a target at a known range comprising:
- (a) a lightweight, hand-held computing device including a controller, memory;
a means for inputting data;
a means for displaying information, and a battery means for powering the device;
(b) a ballistics computer program installed in said memory for generating output needed to correctly aim the weapon at a target of known range using the scope, said program requiring the shooter to input in response to queries information regarding external conditions, information regarding the weapon and ammunition being used, and information regarding the range to, and movement of, the target.
2 Assignments
0 Petitions
Accused Products
Abstract
An improved shooting system is provided by using a firearm having a telescopic gunsight mounted a predetermined distance above the barrel in conjunction with a computer including a controller, memory; a program stored in memory for calculating targeting information. The computer can be a hand-held, personal digital assistant type device which enables the user to input information regarding weather, gun and ammunition characteristics, and target information, including range to target, and which quickly calculates the adjustments which need to be made to a conventional scope, or the location on the reticle which should be used as an aiming point, in order to hit the target.
83 Citations
20 Claims
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1. A hand-held electronic ballistics calculator for use by a sport shooter with a firearm having a barrel for firing a predetermined cartridge containing a bullet, said firearm equipped with a telescopic gunsight mounted adjacent to said barrel, said hand-held electronic ballistics calculator for accurately computing targeting information needed to hit a target at a known range comprising:
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(a) a lightweight, hand-held computing device including a controller, memory;
a means for inputting data;
a means for displaying information, and a battery means for powering the device;
(b) a ballistics computer program installed in said memory for generating output needed to correctly aim the weapon at a target of known range using the scope, said program requiring the shooter to input in response to queries information regarding external conditions, information regarding the weapon and ammunition being used, and information regarding the range to, and movement of, the target. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for accurately hitting a target with a firearm shooting a cartridge having predetermined characteristics, said firearm equipped with telescopic gunsight mounted in a predetermined position relative to a gun barrel, said gunsight having a reticle including at least an optical center, a primary vertical cross-hair intersecting said optical center and having a predetermined thickness, and a primary horizontal cross-hair having a predetermined thickness intersecting said primary vertical cross-hair, said firearm used by a shooter having a rangefinder for determining a range to a target, and a lightweight, hand-held computing device which includes a controller, memory, data input means, data output means, and a portable power source for powering the device;
- and, a targeting program installed in said memory for generating output needed to correctly aim the weapon at a target of known range using the telescopic gunsight, said program requiring the shooter to input data in response to queries, said data including information regarding external conditions, information regarding the firearm and cartridge, and information regarding the range to, and movement of, the target, the method comprising the steps of;
zeroing the weapon at a known first range so that the intersection of the primary vertical and primary horizontal cross-hairs serves as a correct aiming point for any target at said first range;
inputting data regarding temperature, barometric pressure, relative humidity, windspeed, wind direction, ground slope, and speed of the target in response to queries by the program;
inputting data regarding the telescopic gunsight, the range at which weapon was zeroed, bullet weight, ballistic coefficient, muzzle velocity, and height of the telescopic gunsight above the barrel in response to queries by the program;
locating a target and determining distance to the target using the rangefinder;
inputting the distance to target in response to a query by the program; and
,using the aiming point information output from the program to sight on and shoot the target. - View Dependent Claims (10, 11, 13, 14, 15, 16, 17, 18, 19, 20)
- and, a targeting program installed in said memory for generating output needed to correctly aim the weapon at a target of known range using the telescopic gunsight, said program requiring the shooter to input data in response to queries, said data including information regarding external conditions, information regarding the firearm and cartridge, and information regarding the range to, and movement of, the target, the method comprising the steps of;
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12. A target shooting system for accurately hitting targets comprising:
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a firearm for firing cartridges of predetermined characteristics including bullet weight, ballistic coefficient, and muzzle velocity;
an improved telescopic gunsight mounted in a predetermined position relative to a gun barrel, said gunsight having a reticle including an optical center, rangefinder markings, a primary vertical cross-hair intersecting said optical center, and a primary horizontal cross-hair intersecting said primary vertical cross-hair, a plurality of secondary horizontal cross-hairs intersecting said primary vertical cross hair and evenly spaced a predetermined distance along said primary vertical cross-hair, at least some of said secondary horizontal cross-hairs being marked for identification and range calibration purposes, a plurality of secondary vertical cross-hairs intersecting at least some of said secondary horizontal cross-hairs and evenly spaced a predetermined distance along at least some of said secondary horizontal cross-hairs;
a computer including a controller, memory accessible by said controller, a program stored in memory for calculating information for calibrating a range for each secondary horizontal cross-hair and for calibrating aiming points on the reticle, means for inputting data needed by the program, output means for providing information generated by the program to a user, and power for running the computer.
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Specification