How to Use BDX Riflescopes and Rangefinders

How to Use BDX Riflescopes and Rangefinders

The SIG SAUER Ballistic Data Xchange (BDX) rangefinder, riflescope, and app has transformed hunting with it’s unprecedented simplicity and accuracy. Learn how to use it individually or together as an optics system.


  1. Harold Lampasso on November 18, 2021 at 7:37 pm

    Very cool. BUT let’s say my battery goes dead on the scope or some other aspect of Murphy’s Law goes into effect as in technology failing at the moment most needed. Can I still make adjustments and get rounds on target like a traditional scope?

  2. YellowNeck102 on November 18, 2021 at 7:38 pm

    Am looking to buy one for hunting and long ranged target shooting sierra 6 bdx 5-30×56 mm or sierra 6 bdx 3-18×44 mm which one good? thanks

  3. Саша on November 18, 2021 at 7:41 pm

    The rangefinder is really pretty good, can’t say how well it does with the paired scopes since I don’t have one.

    I’d like to use the app, but the permissions are incredibly pervasive. Why does my rangefinding app need access to my phone, mic, wifi, contacts, location and internet? Feels really insecure to me.

  4. Donald_ Trump__ on November 18, 2021 at 7:45 pm


  5. 300 BLK on November 18, 2021 at 7:48 pm

    Man this looks like fun

  6. sandman771 on November 18, 2021 at 7:49 pm

    First one!!!

  7. Tamati Rogerson on November 18, 2021 at 7:53 pm

    Another vid about bdx3 and kilo that skips the exact thing I need. Paid, mounted, everything’s on…..all I’ve managed to work out is the illuminated dot holdover mode. Then the app repeatedly started updating firmware on the kilo then stuck on 1% forcing an app manual shutdown. Hundreds of $…..not going well. Regretting. It’s fiddly. Not fun. Hopefully will master it….

  8. Gaming with Goose on November 18, 2021 at 7:54 pm

    I wonder how many team guys I’m either Delta or DEVGRU use this feature – I myself love shooting with the MRAD/MOA Dials but I could only imagine how useful this system would be to the Warfighter to get ACCURATE shots on target at many different ranges QUICKLY

    Great work SIG

  9. The Settlemonster on November 18, 2021 at 7:55 pm

    Excellent… the next logical technology improvement and upgrade.

  10. ger yang on November 18, 2021 at 7:55 pm


  11. JOHN RUSSO on November 18, 2021 at 7:58 pm

    That takes all the fun out of long range shooting

  12. Paul Würdig on November 18, 2021 at 8:02 pm

    How does it measure windage?

  13. bruger g55 on November 18, 2021 at 8:03 pm

    Looks nice 😉

  14. Michael Martin on November 18, 2021 at 8:08 pm

    I absolutely love this Scope/rangefinder combo it took me five minutes to SIGHT in my rifle and I have not missed the shot ever cents I think my rifle range finder to my phone. I’ve taken shots over 700 yards on 10 inch steel plates and Still have not had one miss. It makes an average shooter incredibly accurate shooter

  15. Victor Perez on November 18, 2021 at 8:12 pm

    people, does it work on people?

  16. Gideion on November 18, 2021 at 8:13 pm

    Just purchased mine yesterday! Can’t wait until it’s delivered and installed on my Momentum 6.5 creedmoor! 🤤

  17. hometownseven on November 18, 2021 at 8:17 pm

    Would like to see it all be dun just from the scope. would nice system on an RMR also

  18. Sn_Imagery on November 18, 2021 at 8:19 pm

    Why all the bad reviews on the android app? Does anyone have any real world experience with android on this system?

  19. jamesdewer on November 18, 2021 at 8:20 pm

    I can touch off a 30rd mag in nothing flat. Hope this helps in the accuracy dept, heh.

  20. 8654 Zulu Foxtrot on November 18, 2021 at 8:21 pm

    So many uninformed comments here. First off this is no different than learning to land nav with a compass and using a GPS, you should always know how to use the compass and map just in case your batteries die or other malfunction. Same here, learn how to shoot with just the crosshairs and use the tech when it’s available. Battery life on this scope is 20,000hrs, that’s 833 days of constant on! Not sure how you will ever run out of battery if you are paying attention, oh, and crazy idea….bring a couple extra batteries in your kit just in case of the apocalypse and you need to stay in the field for the next few years!

  21. green street on November 18, 2021 at 8:23 pm

    Just got the 1400 bdx. Whats with all the terrible reviews on the app? And will it ever get fixed?

  22. Su Amigo El Ilegal on November 18, 2021 at 8:27 pm

    Should be called the cheaters scope for beginners

  23. Dark cat on November 18, 2021 at 8:29 pm

    Ima put this on my ak47 lol I know ill get shit for it but I don’t care

  24. Suppressed Nation on November 18, 2021 at 8:31 pm

    Looks very interesting!

  25. anonymous2024 on November 18, 2021 at 8:33 pm

    yah while you fuck around with all that trash (scope then range finder and check your phone for more info) the deer or person walks out of your sight forever.. this just goes to show you technogy is not always good..