Overview
The Sig Sauer Sierra3 BDX 2 4.5-14x50mm riflescope integrates advanced ballistic data exchange capabilities directly into the optic. Engineered for accuracy and efficiency, this tactical optics system pairs seamlessly with a BDX-compatible KILO rangefinder, providing an illuminated holdover dot for precise shot placement. Utilizing the advanced BDX-R1 Digital Focal Plane (DFP) reticle, this system is designed to streamline engagement for both the precision rifle shooter and the dedicated hunter, simplifying complex ballistic calculations in dynamic environments.
Key Features
BDX (Ballistic Data Xchange) System
The BDX system leverages Bluetooth connectivity to a compatible KILO rangefinder and the BDX App (iOS/Android). This integration facilitates real-time ballistic calculations by incorporating environmental data and user-defined ballistic profiles. The system projects an illuminated, precise holdover point directly onto the reticle, significantly optimizing target engagement and mitigating potential errors associated with manual adjustments.
Digital Focal Plane (DFP) BDX-R1 Reticle
The DFP BDX-R1 Reticle combines traditional Second Focal Plane (SFP) stadias with an OLED illuminated ballistic holdover dot. This design ensures the holdover dot dynamically scales with magnification, maintaining precise subtension across the entire 4.5x to 14x magnification range. This technical implementation offers the benefits of both reticle types, providing consistent ballistic solutions at any power setting.
Advanced Optical System
Equipped with SpectraCoat lens technology, all optical surfaces are treated to maximize light transmission and enhance image resolution. This precise optical engineering ensures critical target identification and clarity, delivering superior performance across diverse environmental light conditions and extended engagement periods.
Integrated Technologies
The Sierra3 BDX 2 incorporates LevelPlex digital anti-cant technology, providing immediate feedback on rifle cant. This assists in maintaining a level shooting platform for enhanced accuracy, particularly during extended range engagements. Additionally, the KinETHIC kinetic energy transfer indicator furnishes critical terminal performance data, informing ammunition selection and ensuring ethical engagements for hunting applications.
Construction and Reliability
The Sierra3 BDX 2 is constructed around a robust 30mm maintube, precisely machined from aircraft-grade aluminum for exceptional durability and long-term reliability. Its hard-anodized black finish provides a resilient exterior, capable of withstanding demanding field conditions and resisting corrosion. This construction ensures consistent performance for rigorous competitive use, demanding hunting expeditions, and tactical applications.
Technical Specifications
- Magnification: 4.5-14x
- Objective Lens Diameter: 50mm
- Reticle: BDX-R1 (Digital Focal Plane, OLED Illuminated)
- Main Tube Diameter: 30mm
- Finish: Black Anodized
- Compatibility: BDX-compatible KILO Rangefinders, BDX App (iOS/Android)
- Integrated Features: Bluetooth BDX, SpectraCoat Lenses, LevelPlex Digital Anti-Cant, KinETHIC Kinetic Energy Transfer Indicator
