DocUSMCRetired
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Applied Ballistics Toolbox App (Android):
We are proud to introduce the next step in our platform, the Applied Ballistics Toolbox. This is only a single phase, in what is to come in the next generation of development in our apps. With this tool, you can quickly calculate some of the more important inputs for use in your firing solutions.
Spin Doctor:
This allows you to check the SG (Gyroscopic Stability) of your bullet. Not only does it give you a stability factor, it gives you the corrected BC for your SG. For every 0.1 shift in SG you get a 3% +/- change in BC. We take the guess work, and math out of this for you, but also incorporate the Applied Ballistics Library at the same time. Simply pick the bullet from our library, input your data, and it will return you an SG with a corrected BC. Note Altitude can be changed to Pressure if you want to use Station Pressure. Calculate the gyroscopic stability of your bullet based on your bullets: caliber, weight, length, velocity in your specific atmosphere. Spin Doctor answers the question about what bullets will be stable in your rifle. Furthermore, Spin Doctor tells you if a particular bullet is under stabilized, and how much the Ballistic Coefficient (BC) of the bullet may be compromised due to marginal stability. Spin Doctor contains a bullet library which includes bullet: length, weight, caliber, G1 and G7 BC's. In this way, the Spin Doctor app also functions as a basic BC look up. The bullet/BC library contained in Spin Doctor contains all the live fire measured BC's that are published by Bryan Litz in: "Ballistic Performance of Rifle Bullets". The Spin Doctor app works with English and metric units.
Density Altitude:
This tool allows you to calculate DA (Density Altitude) by simply entering your basic atmospheric data. Aside from being able to input Barometric Pressure, you can also input Station Pressure, and the units of measure are adjustable. Next update will include speed of sound calculated. The Density Altitude (DA) utility calculates DA based on various combinations of environmental data. English and metric units are supported as well as barometric pressure and altitude vs. station pressure. This utility is useful just to see, for example, how much a given temperature or pressure change affects your DA.
Sight Scale Factor:
This tool goes along with our Tall Target Test http://www.abmediaresources.com/talltarget.pdf. Now, you can simply input your Range, which needs to be at a minimum to the tenth of a yard/meter (it is best to measure to the hundredth), you can input your scope adjustment, and your poi shift (to the thousandth of an inch if you want). It will then return the correct (SSF) Sight Scale Factor for you. This will allow you to do a Tall Target Test with multiple points of impact, and calculate each SSF instantly. One of the most common reason shooters miss targets at long range is because scope turrets don't always track accurately. For example, you might dial 30 MOA but only get 29 MOA from your scope. The Sight Scale Factor (SSF) utility allows you to calculate a scale factor to correct your calculated drop based on your scope error. The way it works is, you conduct a 'Tall Target Test' at 100 yards where you measure your Point Of Impact (POI) shift and you input your expected (dialed) POI shift. The calculator determines a SSF that you need to apply in a ballistics program to correct for improperly tracking scopes, putting you on target at long range. You also have the ability to copy paste, using the Copy SSF function. So you can transfer this to other resources.
The SSF utility works with MILS and MOA, as well as meters and yards.
Mil Ranging:
This tool gives you the ability to range targets through your scope. Simply input the Target Size, and the Target Size in Reticle, and it will return the Range to Target. You can change units by simply clicking on the unit itself. By clicking on the target size box, you can bring up a reference chart.
Slope Dope:
This tool gives you a simple correction for shooting uphill/downhill. While not as complex as the firing solution found in the AB Solvers which accounts for the slowing of the bullet. This tool does give you a simplified firing solution correction for uphill/downhill shooting.
Chrono Correction:
This tool will provide you with a correction MV based on the distance between your chronograph and your rifle. By using the actual recorded velocity, the BC of your bullet, and the Distance to the Chronograph. This tool provides a fast and accurate MV correction for the distance between the rifle and chronograph. You also have the ability to copy this for use in other resources.
You can find this app here (4.99$): https://play.google.com/store/apps/details?id=hess.jacob.ballisticutilitiestoolbox
User Guide: http://www.abmediaresources.com/ABToolbox.htm
We are proud to introduce the next step in our platform, the Applied Ballistics Toolbox. This is only a single phase, in what is to come in the next generation of development in our apps. With this tool, you can quickly calculate some of the more important inputs for use in your firing solutions.
Spin Doctor:
This allows you to check the SG (Gyroscopic Stability) of your bullet. Not only does it give you a stability factor, it gives you the corrected BC for your SG. For every 0.1 shift in SG you get a 3% +/- change in BC. We take the guess work, and math out of this for you, but also incorporate the Applied Ballistics Library at the same time. Simply pick the bullet from our library, input your data, and it will return you an SG with a corrected BC. Note Altitude can be changed to Pressure if you want to use Station Pressure. Calculate the gyroscopic stability of your bullet based on your bullets: caliber, weight, length, velocity in your specific atmosphere. Spin Doctor answers the question about what bullets will be stable in your rifle. Furthermore, Spin Doctor tells you if a particular bullet is under stabilized, and how much the Ballistic Coefficient (BC) of the bullet may be compromised due to marginal stability. Spin Doctor contains a bullet library which includes bullet: length, weight, caliber, G1 and G7 BC's. In this way, the Spin Doctor app also functions as a basic BC look up. The bullet/BC library contained in Spin Doctor contains all the live fire measured BC's that are published by Bryan Litz in: "Ballistic Performance of Rifle Bullets". The Spin Doctor app works with English and metric units.
Density Altitude:
This tool allows you to calculate DA (Density Altitude) by simply entering your basic atmospheric data. Aside from being able to input Barometric Pressure, you can also input Station Pressure, and the units of measure are adjustable. Next update will include speed of sound calculated. The Density Altitude (DA) utility calculates DA based on various combinations of environmental data. English and metric units are supported as well as barometric pressure and altitude vs. station pressure. This utility is useful just to see, for example, how much a given temperature or pressure change affects your DA.
Sight Scale Factor:
This tool goes along with our Tall Target Test http://www.abmediaresources.com/talltarget.pdf. Now, you can simply input your Range, which needs to be at a minimum to the tenth of a yard/meter (it is best to measure to the hundredth), you can input your scope adjustment, and your poi shift (to the thousandth of an inch if you want). It will then return the correct (SSF) Sight Scale Factor for you. This will allow you to do a Tall Target Test with multiple points of impact, and calculate each SSF instantly. One of the most common reason shooters miss targets at long range is because scope turrets don't always track accurately. For example, you might dial 30 MOA but only get 29 MOA from your scope. The Sight Scale Factor (SSF) utility allows you to calculate a scale factor to correct your calculated drop based on your scope error. The way it works is, you conduct a 'Tall Target Test' at 100 yards where you measure your Point Of Impact (POI) shift and you input your expected (dialed) POI shift. The calculator determines a SSF that you need to apply in a ballistics program to correct for improperly tracking scopes, putting you on target at long range. You also have the ability to copy paste, using the Copy SSF function. So you can transfer this to other resources.
The SSF utility works with MILS and MOA, as well as meters and yards.
Mil Ranging:
This tool gives you the ability to range targets through your scope. Simply input the Target Size, and the Target Size in Reticle, and it will return the Range to Target. You can change units by simply clicking on the unit itself. By clicking on the target size box, you can bring up a reference chart.
Slope Dope:
This tool gives you a simple correction for shooting uphill/downhill. While not as complex as the firing solution found in the AB Solvers which accounts for the slowing of the bullet. This tool does give you a simplified firing solution correction for uphill/downhill shooting.
Chrono Correction:
This tool will provide you with a correction MV based on the distance between your chronograph and your rifle. By using the actual recorded velocity, the BC of your bullet, and the Distance to the Chronograph. This tool provides a fast and accurate MV correction for the distance between the rifle and chronograph. You also have the ability to copy this for use in other resources.
You can find this app here (4.99$): https://play.google.com/store/apps/details?id=hess.jacob.ballisticutilitiestoolbox
User Guide: http://www.abmediaresources.com/ABToolbox.htm
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