Infinity incorporates a number of significant features. We hope we have succeeded in making this information truly useful to you. The program has eight computational modes of operation, and it performs these operations on any one of five selectable active bullets at any time. In the first operation, the Trajectory computation operation, it computes downrange, vertical, and crossrange positions and downrange, vertical, and crossrange velocities in slant range coordinates referenced to the extended bore line of the gun.
That is, it performs the trajectory computations for level or non-level shooting and refers the data to the direction in which the shooter is pointing the bore of the gun. It also computes time of flight, energy, momentum and wind deflections. It does these computations for specifiable atmospheric conditions, altitudes and wind conditions. This operation permits the selection of 10 different tabular printout formats. There are ten individual tabular printouts that are available to the user in the normal Trajectory operation.
The Uphill-Downhill and Trajectory Variations operations present two additional tabular printouts that are similar to the basic trajectory table but show the parameter changes resulting from the changed shooting conditions. The remaining operations provide unique textual or tabular material that relate to that particular operation. We recommend that you select your favorite bullet and run trajectories with each of the tabular modes to examine the data on each. The second operation in the Operations menu computes Point Blank Range for a game animal or target such as a silhouette for the case where a gun is already zeroed at a specific range.
The third operation computes the Maximum Point Blank Range for a given game animal and the necessary zero range to use to achieve this maximum. The fourth operation, Uphill-Downhill , computes the bullet path difference for the case of zeroing in on a reference range and then shooting later at an elevated or depressed firing angle. This is an important situation for hunting. The fifth operation, Calculate Zero , calculates the zero range for the case in which a gun shoots high by a measured amount on a target at a measured distance from the muzzle.
This is an important situation for many hunters and target shooters. The sixth operation calculates the Maximum Range of a bullet along a given slope angle, which can be chosen as positive uphill , zero level fire , or negative downhill.
This operation also calculates the elevation angle of the muzzle referenced to level to reach the maximum range along the chosen slope. The seventh operation, Vertical Fire , utilizes a special case of the equations of motion to calculate the maximum altitude that a bullet can reach if fired vertically.
It calculates variations from a reference or baseline bullet trajectory caused by variations in shooting conditions. This operation is very useful to determine sensitivities of trajectory parameters to changes in shooting conditions. It permits the user to determine the trajectory characteristics of varying bullet and environmental parameters without destroying the initial trajectory parameters.
Although the program operates in normal English units to accommodate the G1 Drag function, it handles full metric input and output units, or mixed mode units for some of the current shooting games where ranges are in metric units and all other values are in English units. The Units mode is selectable on the Trajectory Parameters panel of the Trajectory operation. The program calculates all basic trajectories in 1-yard or meter increments to the specified Maximum Range specified on the Trajectory Parameters sidebar or to a maximum of yards meters.
The printout values, zero ranges and maximum ranges can be any multiple of one yard or one meter. The printout ranges will be multiples of the Range Increment specified on the Trajectory Parameters panel with the exception of the Silhouette tables.
All computed values for maximum range, point blank range, etc. In order to prevent computational overflow in the equations, we have included a computational limit when the bullet drop reaches a value which exceeds 9 feet within 3 feet of downrange travel.
A special note on the table will be printed when this limit is exceeded, and the Maximum Range value in the Trajectory Parameters panel will be set to this number. The only operating restrictions we have placed on the user are ones that are necessary for proper mathematical and program function.
It is incumbent upon the user to assure that his operational conditions are what he desires prior to computation. It is easy, for example, to run a trajectory at an altitude of feet and a non-standard temperature condition with a vertical wind of 20 miles per hour when what is really wanted is a trajectory at feet altitude with no winds.
While we have tried to print all conditions on the outputs, the results can be misinterpreted if the user is lax or in a hurry when computing. It is easy, of course, to correct the input value and re-run the calculation. In fact, you can change any inputted firing condition or combination of conditions. You can also graph the trajectory variations that result. Another key feature of the program is that it will calculate the point blank range of a cartridge for a game animal or silhouette target of any size up to a vital zone of 30 inches - 7.
The first case is when you have already sighted in your gun for a certain zero range and you want to know how far out you can shoot at the target without holding high to compensate for the drop of the bullet.
In the second case the program will tell you where to set your zero range in order to maximize the point blank range. The program also will tell you what happens when you first zero your gun in at a convenient shooting range, and then shoot at a target that is either uphill or downhill compared to the shooting range where you sighted in.
In such a situation the bullet trajectory will be different compared to the trajectory at the range you used to zero in.
The program calculates the differences in all the trajectory parameters for you. Another feature of the program will compute where your gun is zeroed if you know that it shoots high by a measured amount at a known range.
Still another feature calculates the maximum range that a bullet can reach along a given slope angle. The slope angle can be chosen as positive uphill , zero level fire , or negative downhill. This feature also calculates the elevation angle of the gun muzzle referenced to level for the bullet to reach the maximum range along the chosen slope. The links now return a error.
Can anyone help? Bob B. I had the same issue. I had to download the 7. You are commenting using your WordPress. You are commenting using your Google account.
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