Hawke ChairGun Pro
(ChairGun 4 - pellet trajectory software)
Now available on
Mac & Windows

The perfect reticle setup is simple...
...use the FREE Hawke® ChairGun Pro

ChairGun Pro 4 v4.0.8


The Ultimate Pellet Trajectory Software

For those who wish to delve a little deeper into airgun or rim-fire ballistics, we present ChairGun Pro. Based on the highly successful ChairGun2 and 3, the interface has now been redesigned to make it more intuitive and easier to use. ChairGun Pro uses modern, accurate ‘modified point-mass’ ballistic functions to instantly give you the essential data that you need.

ChairGun Pro is a free tool designed to compliment the Hawke Specialized Reticles (SR6, SR12, SR Pro and Deer PASS SR), the Hawke Multiple Aim Point reticles (MAP6, MAP8 and Deer PASS MAP), the Hawke 1/2 Mil-dot Reticles (10x and 20x) as well as traditional generic Mil-Dot and 30/30 reticles.

How do the aim-points change if you use another zero range? ... or velocity, or mount height, or pellet, or ... ? A unique feature of ChairGun Pro enables you to simultaneously compare the performance up to four similar (or completely different) set-ups so you can get a quick and dependable insight into those 'what if?' scenarios

Take the information into the field - ChairGun Pro allows you to print trajectory graphs, tables, reticle images and range finding calculations - and save settings for future reference.

And it doesn't end there . the supplied pellet database is comprehensive, editable, printable and can be updated on-line. Additional 'helper' programs are included for specialized tasks (such as PCP Bottle Filling, Range Cards, Scope Tapes or Maximum Range and Crosswind analysis). The set-up package also includes a comprehensive help-file and access to on-line help

ChairGun Pro's modern ballistics functions have been thoroughly field-tested. If your requirements are simple or complex, the graphs, tables and labels give accurate information that would take hours of tedious range-work to achieve manually. Perhaps you're wondering how a different pellet will affect the trajectory of your airgun or a change of calibre or scope or mount height.

ChairGun Screenshot

Graphs: Point-of-Impact, Velocity, Energy, Momentum, Elapsed Time, Mil-Dot/Laser Range-finding, Pellet Choice, Clicks/Range, Wind-deflection, Mil-Dots/Range, Taylor Values, Optimum Zero Range, etc.

Reticles Specialised Reticles (SR6, SR12, SR Pro and Deer PASS SR), Multi-Aim-Point Reticles (MAP6, MAP8 and Deer PASS MAP), the Hawke 1/2 Mil-dot Reticles (10x and 20x) and standard generic Mil-Dot and 30/30.

Graphs Point-of-Impact, Velocity, Energy, Momentum, Elapsed Time, Minutes of Arc, Clicks/Range, Wind-deflection, Mil-Dots/Range, Laser Holdover, Ballistic Profiles , etc. - all of which can be printed or saved as image (.jpg) files.

Tables tables of all of the above graph values plus General Ballistics, Wind-deflection, Inclined Point-of-Impact, etc. - all of which can be printed or saved as spreadsheet files (.csv) for further analysis if required.

Tools: Optimum Zero Range calculation, calculators for Ballistic Coefficient, Scope calibration, Scope Shims, Reticle Images, Scope Cap Labels and tapes, Maximum Parallax error, etc., etc

System Requirements
Operating System: Windows 98, 98SE, 2000, XP, Vista, Windows 7 and 8.
OSX: v10.3 Panther or later

Free Hard-disk space: 10 MB or more

RAM: 128 MB minimum

Display: resolution 600 x 800 or greater. (A colour monitor is preferred but a monochrome device is usable)

You will also need a printer on which to print the graph and/or reticles. Again, a colour printer is best but a monochrome printer will suffice.

    With ChairGun Pro you can:
  • Free tool designed to compliment Hawke Reticles
  • Simultaneously compare performance setups
  • Print trajectory charts, calculations & images
  • Comprehensive Editable and up-dateable Pellet database
  • Printable
  • Thoroughly field tested
  • Intuitive, easy to use computer interface
  • Optimum Zero Range
  • Point of Impact
  • Clicks/Range
  • Wind Deflection
  • Maximum Range and Crosswind Analysis

If using Microsoft Windows please ensure you are running the latest version of Java click here to download.

Download PDF instructions: click here