Athlon Optics Rangecraft Velocity Pro Radar Chronograph w/ 2.4" Display, Bluetooth Connectivity with App for Real-Time Projectile Speed Readings (for Any Firearm, Airgun, or Archery)
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Availability:
In Stock.
Arrives
Wednesday, Apr 29
Features
- DOPPLER RADAR PRECISION: Get incredibly accurate data without touching your barrel. Using Doppler radar, the Velocity Pro measures speeds from 65 to 5,000 FPS with +/- 0.1% accuracy. Because it sits beside your firearm, not on it, your barrel harmonics and zero are never compromised. Its the smart, non-invasive way to gather critical performance data.
- ADVANCED SESSION MANAGEMENT: All your data, right at your fingertips. The device stores up to 50 sessions with 100 shots each. On-screen, you can instantly view average velocity, standard deviation, extreme spread, and more. For a bad shot, simply hold the "DEL" button to remove it from your string without stopping.
- SEAMLESS APP INTEGRATION: Unlock your datas full potential. Connect via Bluetooth to the Athlon Ballistics Lite app (compatible with both Android and iPhone) to sync all your sessions. In the app, you can manage and modify your data, exclude shots from calculations, rename sessions, and associate data with specific rifle and bullet profiles for detailed sorting and filtering.
- BUILT FOR THE FIELD: Compact, rugged, and ready for anything. The Velocity Pro weighs a mere 4.7 ounces and is IP67 waterproof. Its large 2.4" LCD screen ensures you can read your results clearly in any condition.
- INTUITIVE & VERSATILE OPERATION: Spend your time shooting, not setting up. With a simple interface, you can quickly start a new session for rifles, pistols, archery, or air guns. When creating a "New Session," you can enter projectile weight to automatically calculate Kinetic Energy and Power Factor for your records.
Brand: Athlon Optics
Power Source: rechargeable battery
Display Type: LCD
Product Dimensions: 3.5"L x 1.2"W x 2.7"H
UPC:
Global Trade Identification Number: 15
Power Source: rechargeable battery
Display Type: LCD
Item Dimensions L x W x H: 3.5"L x 1.2"W x 2.7"H
Brand: Athlon Optics
UPC: 813869024915
Global Trade Identification Number: 15
Model Number: 707301-Athlon
Mfr Part Number: 707301
Built-In Media: See Description
Manufacturer: Athlon Optics
Warranty Description: See Manufacturer Website
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, Apr 29
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
I really love this chronograph, no more shooting through hoops or worrying about too much shade and sunlight. Simple to use and accurate. Just put it off to the side of your firearm ,five inches from the front of your barrel and shoot. Battery life has been great. You can keep multiple sessions on the device. Choose between pistol and rifle or fps, put your bullet weight in and start. Records multiple things besides fps, SD, energy etc. Connects to a ballistic app. I've downloaded the app but haven't used it yet. Costs $100.00 less than a Garmin and does the same thing, except for bragging rights I don't know what that $100.00 extra gets you.
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Reviewed in the United States on January 8, 2026 by Gary Robertson
I bought this to replace a 5 year old Caldwell chronograph. The old unit took a bit to set up and frequently missed readings or gave unusually high readings (like 4000 fps). I took the Athlon chronograph to the range today to complete some step tests in developing some 9mm loads. The chronograph was extremely easy to set up. I did buy a 60” tripod for this just to make it easier. The chronograph worked flawlessly. I timed 82 shots and recorded velocities (and other data) for every shot. No issues, no unreasonable readings or missed shots. The readings seemed much more consistent and even for load development, the standard deviations were much better. The radar seems to be much more reliable and accurate. The SD for initial loads, which are typical higher, ranged from 22.1 to 24.0 fps. Best SDs were 6.9 and 8.6 fps. This was for 10 shot strings. The Athlon chronograph is easy to use. I read the manual, went to the range and used it without issue. It is a huge improvement in technology over the Caldwell unit. Yes, it is a lot more expensive, but if you hand load and develop multiple loads for multiple calibers, bullet weights, powders, etc, it is worth the cost.
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Reviewed in the United States on November 25, 2025 by Stella
Awesome chronograph! Tested it with a variety of calibers, its quick, accurate and easy to use.
Reviewed in the United States on March 20, 2026 by Cody
Oh my word, how did I ever live without this! It seems accurate (... I don't have lab eqpt to acutally test, but values and variance between changes in load suggest to me it is). It is SOOOOO much easier to use than other systems I've used (shoot over, shoot through, magento thingie....). Set it on the table, turn it on, BOOM - fire rifle. Put it on a tripod and shoot a pistol over it and it's good there too. It misses very few shots (unlike other chono systems...) and has only missed when I don't get it pointed down-range well. I can't say how it does with someone right next to you, but I shot the other day down a 30yd range with someone about 10-12 feet to my right and it got my shots but not his - nice! It does a good job storing data and it's easy to retrieve them. I have not pushed the battery with a marathon session, but I've taken it to the range about 6-8 times for 2-5hr each time (NOT full running time - I turn it off to reset targets, reload mags, etc.) Until I figured out the phone thing, I was then copying down data for 20-30 min each of those range sessions. After all that, battery still says 75%. These "little" uses are easier on batteries, for sure, so it might drain faster if used hard for hours straight... but I have confidence if I topped it off, it'd run solid for as long as I'd shoot in any given day! One thing I did not see when I bought it was that if you get the app for your phone, you can EASILY download and view on phone. That makes it so much easier to record info back at home - it syncs in like 1-2 sec, and I can scroll up and down looking over data, giving names to strings of shots, seeing graphs, etc. You can even export it on your phone as a spreadsheet and I guess you could put it in the cloud and grab to your PC if you want... I don't bother. The app actually does far more than sync and download data though... it's a nice little ballistics calculator that lets you use the data, your REAL velocity data, to calculate sighting adjustments. For instance, I can put in details about my Ruger M77 - barrel length, twist, etc. Then add a load, say a 55grHornady FMJ (putting in details about bullet, like ballistic coeff, etc) over XXXgr of XXX powder. Add a few more details like zero point and then link the velocities from the range ... now you have a rifle - bullet pair you can use. You can put in multiple rifles each with multiple loads. Then you can select a rifle + bullet, and then add conditions, such as temp, wind, angle to target, etc .... and it will not only give a ballistic table, it will show hold-over. To take it a step further, it gives visuals as it would appear ON YOUR SCOPE if you have an athlon scope (... which I do happen to have...). If you don't have Athlon scope, it still gives you MOA/MIL (or you can pick one similar to your scope) so no problem. End result is, I see exactly where to hold on the reticle ON the actual target (you can pick from targets like a deer, a coyote, prairie dog, bullseye etc.) given set conditions with set rifle-load combo at a given range. So yeah, it's an awesome tool by itself BUT this shooting 'ecosystem' you can get/use with the FREE app makes it so much more usefui (and fun to tinker with...) than I ever expected. SUCH a cool system! If it sounds like I'm a paid advertisement - it's not!! I bought it, without a discount, on my own. I just love this thing THAT much. Yeah, it's expensive, but it is SOOOOO nice, so easy to use. It saves me time, makes my life better when shooting, and makes me a little bit happier when I'm at the range! ... if only everything did that! Negatives? Well, with the unit, none really. It was easy to figure out, easy to operate, does a great job, seamlessly fits into my shooting sessions... it's great. THe app has great features, but isn't particularly smooth, though. It took a couple tries to get it paired to my phone. It tried to replace/remove my car as a Bluetooth device (???!), then for a while it self-identified as a Ford Mustang ... whatever floats your boat these days, I guess. It works fine whatever it thinks it is. It's not the most intuitive to add rifles, loads, etc, though once you figure out the quirks it is very usable. I did have an issue when i did a firmware update where it messed up dates (even though date was set correctly in the unit) and as a result was not syncing data. I deleted all shot data in the device (but NOT rifles and bullets/loads as mentioned above) and it's worked fine since. I guess when I update firmware I'll just plan to delete/clear out the shot registers. Fortunately it has not forced firmware updates - i have to go in and ask it to check. I like that :)
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Reviewed in the United States on November 19, 2025 by Seul
Very impressive radar!! Super fast response and easy setup with a first class app! Much cheaper than a Garmin C2 with all of the same features. Called tech support during setup because I missed seeing a button on the bottom corner of the app. Tech support answered on the second ring and solved my issue in minutes. Total elapsed time for the entire call was less than three minutes. $400 for the Athlon. $700 for the Garmin. Same features too.
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Reviewed in the United States on February 3, 2026 by Wilmer Gingerich
I bought my sample two weeks ago and I'm quite pleased with It's performance! Operation Is easy and controls are laid out In a very well thought out manner. I suggest downloading the Athlon App To your smartphone so you can get software updates. I was considering purchasing the Garmin Chrono but the reviews on Youtube for the Athlon Rangecraft were positive and since the Athlon was $100 cheaper I went with the Athlon. I highly recommend the Athlon Rangecraft Chronograph!
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Reviewed in the United States on March 14, 2026 by Gerald Verdicchio