Chairgun Elite Ballistic Tool

JetLab, LLC

In-app purchases

About this app

This is a smart ballistic calculator for long range shooters. It helps shooters calculate hold overs, and scope settings necessary for long range shots. Works with large caliber and airguns.

This app is using temperature, altitude, humidity, atmospheric pressure, distance to target, target speed and direction, coriolis effect, slope angle, cant and your rifle configuration for calculate optimal vertical, horizontal and lead corrections.

Features:
• Can use G1, G2, G5, G6, G7, G8, GA, GC, GI, GL, GS, RA4 and even custom drag-functions (built-in editor), and can calculate trajectory without using ballistic coefficient!
• You can select reticle from the list (around 3000 reticles! including reticles from Carl Zeiss, Nightforce Optics, Kahles, Vixen Sport Optics, Premier Reticles, Primary Arms, Schmidt and Bender, SWFA, U.S. Optics, and Vortex Optics) and see holdovers at any magnification (see list of reticles supported here http://jet-lab.org/chairgun-reticles )
• List of bullets: around 4000 cartridges database, more than 2000 bullets database, around 700 G7 ballistic coefficient bullets database, around 500 air rifle pellets database includes American Eagle, Barnes, Black Hills, Federal, Fiocchi, Hornady, Lapua, Norma, Nosler, Remington, Sellier & Bellot, and Winchester (see list of bullet/cartridges supported here http://jet-lab.org/chairgun-cartridges )!
• Correction for coriolis effect
• Takes into account temperature of powder (powder sensitivity factor)
• Correction for spin drift
• Correction for vertical deflection of crosswind
• Trajectory validation (truing) by speed or ballistic coefficient
• Correction for gyroscopic stability factor
• Can measure incline angle with phone camera
• Can get current weather (include wind speed and wind direction) from internet for current location and for any place in the world
• Supports Imperial (grain, in, yard) and Metric units (gram, mm, meter)
• Elevation: Mil-MRAD, MOA, SMOA, Clicks, Inch/Cm, Turret
• Get accurate local pressure using internal barometer
• Adjusts for atmospheric conditions for current and zero conditions (Density Altitude or Altitude, Pressure, Temperature and Humidity)
• Density altitude support (determined automatically for any place in the world)
• Ballistics chart (Range, Elevation, Windage, Velocity, Time Of Flight, Energy)
• Ballistics graph (Elevation, Velocity, Energy)
• Reticle Drop Chart
• Range cards
• Select target type from big list of targets (more than 80 targets are available)
• Target size presets
• Second focal plane scope support
• Moving target lead calculation
• Fast windspeed / direction adjustment
• Integrated with smart sensors. With the tap of a button you can calibrate density altitude, Coriolis, cant and slope in real-time
• Unlimited equipment profiles (create own rifles and bullets)
• Full history of all your shootings
• Scope turret calibration
• Rangefinder
• Ballistic coefficient calculator
• Air laboratory (Air Density, Density Altitude, Relative Air Density (RAD), Dew Point, Station Pressure, Saturation Vapor Pressure, Strelok Pro, Virtual Temperature, Actual Vapor Pressure, Cumulus Cloud Base Height, Dry Air, Dry Air Pressure, Volumetric Content of Oxygen, Oxygen Pressure)
• Light/dark/gray color themes

Ratings and reviews

this app has a really promising feature set, and initially when I put all my data into it, which takes quite some time, it seemed fit for purpose. however, now they want to charge me $2 a month every month just to change the reticle on my scope. so when I selected the wrong one by accident, I have to sign up for a subscription to even change it to one of the default free reticles. Really disappointing.

This app is extremely frustrating. It won't allow the information entered to be saved. ie; when you set the zero distance as 50 yards, as soon as you close and reopen the app, it defaults to 100 yards. I guess it works as long as you set it and don't close the app. It does this for a lot of fields that can be manually changed. It just won't save the information.

I've been running this app for nearly 2 mths. Today saying new features.There is a glitch the figures are not correct as they were yesterday. Saying 3 secs for projectile to 70 yds & 1 click equals 1.83 ins. at 70yds. I know this is not correct. As scope is 1/4 inch at 100yds.Needs sorting. Terry 8/8/25 Hi things are looking better the app is working OK. Will try it over next few days & report back. Thanks

What’s new

• New reticles of riflescope was added:
Monstrum CM4 MOA Challenger 3-15x50/3-18x50/5-20x50/5-25x50/5-25x56/5-30x56/6-24x50
Monstrum CM4 MOA Hornet II 6-24x50
Monstrum Mildot Hornet 4-16x50/6-24x50
Monstrum MM4 MIL Challenger 3-15x50/3-18x50/5-20x50/5-25x50/5-25x56/5-30x56/6-24x50
Monstrum MM4 MIL Hornet II 6-24x50
Monstrum Morpheus MIL Panzer 1-6x24
Vector Optics VIS-FMIL Victoptics S4 6-24x50
Westhunter WD-TFG HD Gen2 6-24x50
Westhunter WD-TFG2 HD Gen2 8-32X56
Westhunter WH011 WHF 4-14x44