Ballistic Precision Chronograph

MSRP: $104.99

Availability: In StockItem Number: 720001Category: Shooting Accessories

In stock

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Product Description

The Ballistic Precision Chronograph provides accurate velocity measurements across a wide range of shooting conditions. Higher accuracy was achieved by using a high speed 48 MHz processor and by designing a circuit with an advanced data interface that allows each unit to be computer calibrated at the factory after assembly. The end result is the ability to provide much better accuracy than other chronographs on the market (+/- .25%). Although technologically advanced, the unit is designed to be simple to operate, displaying velocity in Feet per second or Meters per second on the large built in LCD screen.

The Chrono can also deliver the shot string velocity data through the 15′ foot audio jack cable (included) to smartphone/ mobile device. A free App is available for download that displays the velocity of each shot on the phone screen and records it with other data identifying the load and environmental conditions. The App also automatically calculates Average Velocity, Standard Deviation, Min, Max and Velocity Spread for the shot string. The data is stored and can be exported via Email or simply recalled for reference at a later date. The sunshades are extra wide for better reliability on sunny days and are constructed of a durable synthetic material. Measures from 5 to 9,999 FPS. There is a ¼-20 threaded insert on bottom of housing for tripod mounting, operates on a 9 Volt battery (not included).


Andriod- (

  • Each unit factory calibrated to within +/- 0.25% accuracy
  • Ideal for Firearms, Archery, Airgun and Paintball
  • Simple operation, large LCD screen Meters Per Second (MPS) or Feet Per Second (FPS) readings
  • Extra wide sun screens for added shading in full sun operation
  • Option to interface with Smartphone via included 15’ audio jack cable
  • App displays velocity, logs data, notes, weather conditions, easily exports via SMS or Email
  • Carry bag included

Notice for California consumers:
⚠ WARNING: Cancer and Reproductive Harm –

10 reviews for Ballistic Precision Chronograph

  1. Robert M.Voigt

    Should have got this a long time a go. it works great, you don’t need an I phone for it to work, but I have a old iPhone 4s and it work great. Go to the app store and find the Caldwell app and install and run it.Tested 4 air rifles so far with 5 different pellet manufactures and was happy with the results. Very easy to use and set up also has a spot for a spare 9volt battery, you can use a camera tripod for a stand.

  2. garland

    I have learned a lot since I got this chronograph.I used to shoot reload and shoot and didn’t have any idea of speed or speed spreads.First time I used it was at my hunting buddy’s and it opened his eyes up and he’s been reloading 35 years.Get one.

  3. Michaelo Rocha

    This an updated review. As previously stated, the chronograph works very well and is easy to setup. I was having problems with the Android App working on my Samsung Galaxy S4 using the supplied TRRS audio cable. It just would not sync at all. I found a solution by using a standard printer USB cable along with an on-the-go USB connect for my S4. It now works as advertised. Customer service was very helpful in resolving my issue. It’s all good!

  4. Chris

    Was a little finicky to set up, but after that worked well for a while. The app for my android phone was nice. After about a year the rear sensor quit.

  5. Joe LeBlanc

    I’m a new re-loader and along with accuracy, I want to know how fast a load is travelling. Works great and very easy to set up. The price is right as well. I hook it up to my iphone and have all the data waiting for me to review at the end of the day to help with the next load. Highly recommend…….

  6. Matt.

    A good chrony that could earn five stars if a few mods were available.
    Why no option to run it from an AC adapter instead of a 9V battery?
    Why not offer an option to download software from pellet manufactures such as Crosman, RWS, JSB etc ? This could easily be saved a SD card slot designed into the unit.
    There should be an LED to light up the display screen when shooting indoors like in a basement.
    There should be a template on the rods to mark where the bullet path should be. Would be very convenient on initial setup.
    Very temperamental on initial setup but once you get the hang of it works very well.

  7. [email protected]

    I want to update my review. After sorting out some compatible USB cable issues, I was able to get the app to work with my Samsung Galaxy S4. The app works very well and it generates a spreadsheet with all the data from the session. It even pulled the temp and BP from my phone’s sensors; impressive. But, surprise surprise surprise! When connected to my phone via the USB On-the-Go connecter/adapter, it will draw power from my phone, even when the power switch is in the off position. Not a big deal if you are aware of it, but it can and will drain your smartphone/tablet with a few hours of use. On the plus side, I’m still on my original set of alkaline batteries and I see no life issues. This chrony has been a very useful tool while tuning my airguns. The spreadsheet is sweet! Boo yah!

  8. Luis

    Did anyone connected using the bluetooth?

    I just cant establish connection

  9. SoCal Martin

    Excellent chronograph. Only 4 stars due to the disappointing “Measure Group” function. Does not work. It won’t even allow you to input a measurement photo manually, although you can manually type the group size in the group size box. Besides that it is probably worth twice the price.

  10. Tom mlcoch

    I just purchased this crono. IFirst use it gave good results. However, today the first two readings were ok then they seemed to double in value from about 900 to about 1800 FPS. There was no change in felt recoil. What could be the problem

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Instruction Manual(s)

Ballistic Precision Chronograph and Kit Master Instructions

Print Version

Product Downloads


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Web Files
Print Files


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Print Files

Product FAQs

In order to improve chronograph connectivity with a greater assortment of handheld devices; primarily the Samsung Galaxy S series, we have released a new version of firmware.  This firmware needs to be installed on the chronograph.  The file location for the firmware and instructions on how to install it are as follows:

Phone/ Tablet Compatibility


Should work with all IPhones and IPods and IPad


Should work with all phones and tablets except the ones listed below:

  • LG phones and Tablets
  • HTC phones
  • Older Motorola phones (3 years or older)
  • Older Nexus Tablet
  • Phones and or devices that do not have a microphone input incorporated in the headphone jack

For Compatibility Issues please follow the steps below.

  1. Make sure the most recent app version is installed on the device.  Go to Google Play to see which one that is.
  2. Make sure the device is running the latest operating software.  They can go to settings and check this:  Settings/about phone/system updates
  3. Select compatibility mode under the app settings.
  4. Try swapping the cable end for end.
  5. Make sure after plugging it in the turn up the phone volume
  6. Simulate shots by using a flash light.  Run it over the chrono front to back.  A LED light works best.
  7. Test with a different device (their own or someone else’s) to see if it is the chronograph or the device that is not working.

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