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The all-new SIERRA4-BDX™ riflescope simplifies shooting at distance by connecting to BDX-equipped rangefinders to deliver an illuminated holdover dot specific to your target distance, ballistic performance, and environmental conditions. With a digital focal plane and 194 LED hold points, the SIERRA4-BDX brings unmatched accuracy, connectivity, and clarity to the field.
- BDX™ Ballistic Data Xchange Technology: Pairs with KILOBDX™ rangefinders to calculate and display an exact holdover dot using real-time ballistic and environmental data.
- BDX-R2 Digital Reticle: 194 individually controlled LEDs on a digital focal plane for hyper-precise aiming.
- SmartBDC™ Technology: Choose from 9 onboard ballistic groups or customize your setup for total control.
- Advanced Bluetooth® Antennae: Improved connectivity up to 30 yards — perfect for shooter-spotter pairs when terrain dictates your position.
- Rugged Performance: Waterproof (IPX7), 30mm main tube, and ultra-clear optical system with up to 95% light transmission.
Specifications
| Magnification | 6-24x |
|---|---|
| Objective Lens Diameter | 50 mm |
| Overall Length - X.XX in [XX mm] | 13.9 in |
| Weight - XX oz [XX g] | 24.4 oz. |
| Maintube Diameter | 30mm |
| Total Elevation Travel | >48MOA |
| Total Windage Travel | >48MOA |
| Travel Per Rotation | 25 MOA |
| Eye Relief Low (in) | 3.24 |
| Eye Relief High (in) | 2.44 |
| Field of View Low (FT @ 100 Yards) | 0.8- 3.33 |
| Field of View High (FT @ 100 Yards) | 1.25-5 |
| Diopter Adjustment Range | +/- 2 |
| Color | Black |
| New Mount Included | No |
| Battery | (2) CR2032 |
| Focal Plane | Digital |
| Reticle | BDX-R2 Digital Ballistic Reticle w/194 LEDS |
| Illumination | Yes |
Technology
Infinite Guarantee
LensArmor™
Lumatic™
SpectraCoat™
Stealth ID™
Ballistic Data Exchange 2.0
Angled Modified Range™
Applied Ballistics
Resources
- SIERRA BDX RIFLESCOPE OWNER'S MANUAL
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