Sig Sauer Electro-Optics SOSBDX33111 Sierra3 BDX 2 Riflescope

The Sig Sauer Electro-Optics SOSBDX33111 Sierra3 BDX 2 Riflescope stands as a groundbreaking innovation in the realm of modern hunting and precision shooting optics. Designed for hunters and shooters who demand unwavering accuracy and efficiency in the field, this advanced riflescope seamlessly integrates state-of-the-art digital technology with superior optical performance. It solves the perennial challenge of accurate shot placement at varying distances and in diverse environmental conditions by eliminating complex ballistic calculations on the fly, offering a truly intuitive and streamlined shooting experience.

What is the Sig Sauer Sierra3 BDX 2 and Who Is It For?

If you're a hunter aiming for ethical, one-shot kills, a competitive shooter looking to gain an edge in speed and precision, or simply someone who appreciates the fusion of cutting-edge technology with traditional optical excellence, the Sierra3 BDX 2 is engineered specifically for you. This 3.5-10x42mm riflescope is part of Sig Sauer's revolutionary Ballistic Data Xchange (BDX) system, a connected platform that links BDX-capable KILO rangefinders with BDX riflescopes. The system is designed to provide an illuminated, automatically adjusting holdover dot directly within your scope's reticle, ensuring you have the exact aiming point for your shot.

The Problem: Overcoming Ballistic Complexity in the Field

For generations, shooters have wrestled with ballistic drop, windage, and environmental factors like temperature, humidity, and barometric pressure. These variables significantly affect a bullet's trajectory, requiring shooters to estimate holdovers or make complex turret adjustments—a time-consuming and error-prone process, especially under pressure in hunting scenarios. Missed opportunities, wounded game, or poor scores on the range often stem from these ballistic miscalculations.

The Sig Sauer BDX Solution: Intelligent Simplicity

The Sierra3 BDX 2 addresses these challenges head-on. At its core is the innovative Digital Focal Plane (DFP). Unlike traditional first or second focal plane reticles, the DFP combines Second Focal Plane (SFP) stadia with a brilliant OLED illuminated ballistic holdover dot. This dot automatically scales with your zoom, ensuring it always subtends accurately on your target at any magnification level between 3.5x and 10x.

Here’s how the BDX system transforms your shooting:

• Instant Holdover: When paired via Bluetooth with a BDX-capable KILO rangefinder, the rangefinder measures the distance to your target. This data, combined with pre-programmed ballistic profiles (created in the free BDX App), environmental conditions (which can be manually entered or pulled from connected devices), is instantly transmitted to your Sierra3 BDX 2 riflescope.
• Automatic Aiming Solution: The riflescope then calculates the precise holdover point and illuminates a clear, precise dot on the BDX-R1 reticle. This means no more guessing, no more manual dialing, and no more fumbling with cheat sheets. You simply range, and shoot where the dot tells you.
• Speed and Confidence: This rapid, accurate aiming solution allows for faster target acquisition and increased confidence in making precise, ethical shots, especially crucial in dynamic hunting situations where game may only offer a brief window of opportunity.

Unrivaled Optical Performance and Durability

Beyond its intelligent digital capabilities, the Sierra3 BDX 2 is first and foremost a high-performance optical instrument, built to Sig Sauer's rigorous standards.

• SpectraCoat Lenses: The 42mm objective lens features Sig Sauer's proprietary SpectraCoat lens coatings. These advanced coatings maximize light transmission across the entire visible spectrum, resulting in exceptional clarity, brightness, and true-to-life color fidelity, even in challenging low-light conditions like dawn and dusk when game is most active. They also reduce surface reflections, enhancing contrast and minimizing glare.
• Robust Construction: Encased in a durable black anodized finish, the 30mm main tube is meticulously crafted from aircraft-grade aluminum. This robust construction ensures the scope can withstand the harshest recoil and the rigors of field use.
• Environmental Resilience: The Sierra3 BDX 2 is fogproof and waterproof, meaning it performs reliably in rain, snow, or extreme humidity. Nitrogen purging prevents internal fogging due to temperature changes, ensuring your view remains crystal clear.
• Adjustable Illumination: With 10 Day brightness settings for the illuminated BDX-R1 reticle, you can optimize visibility for any lighting condition, from bright midday sun to deep twilight.

Advanced Features for Precision and Ethics

The Sig Sauer Sierra3 BDX 2 integrates several unique features that elevate it beyond conventional riflescopes:

• LevelPlex Digital Anti-Cant System: Even a slight cant (tilt) in your rifle can cause significant point-of-impact errors, especially at longer distances. The integrated LevelPlex system provides an intuitive digital anti-cant indicator right in your field of view. This ensures your rifle is perfectly level before you take your shot, drastically improving precision and eliminating a common source of missed shots.
• KinETHIC Kinetic Energy Transfer Indicator: For the ethical hunter, knowing if your bullet will deliver sufficient kinetic energy to humanely dispatch your target is paramount. The innovative KinETHIC feature displays a kinetic energy transfer indicator, providing critical feedback on whether your projectile will deliver adequate energy at the target distance. This empowers hunters to make responsible decisions about shot placement and range, upholding the highest standards of ethical hunting.
• BDX-R1 Illuminated Reticle: This second focal plane reticle is optimized for the BDX system. Its design is uncluttered yet provides precise holdover points through the illuminated dot, allowing for quick target acquisition without obscuring your view. The illumination ensures visibility in low-light environments.

Real-World Applications and Use Cases

The Sig Sauer Sierra3 BDX 2 shines in various scenarios:

• Deer and Big Game Hunting: Imagine spotting a buck at an unknown distance. A quick press of your KILO rangefinder, and instantly the Sierra3 BDX 2 illuminates the exact holdover dot for your shot. This speed and precision are invaluable when hunting whitetail, elk, or other big game where opportunities can be fleeting.
• Varmint and Predator Control: When targeting smaller, elusive animals at varying ranges, the ability to rapidly acquire and accurately engage targets without complex calculations significantly increases your success rate.
• Long-Range Target Shooting: While designed with hunting in mind, the BDX system's precision and digital capabilities make it an excellent tool for recreational long-range shooting. It simplifies the learning curve for new shooters interested in ballistics and provides consistent, repeatable results for experienced marksmen.
• Shooting in Challenging Conditions: From adverse weather (fog, rain) to low-light conditions (dawn, dusk), the SpectraCoat optics and illuminated reticle ensure superior visibility, while the waterproof/fogproof construction guarantees reliability. The BDX system's ability to factor in environmental data further enhances performance in dynamic conditions.

How to Get Started: Setting Up Your BDX System

Getting the most out of your Sig Sauer Sierra3 BDX 2 is straightforward:

1. Download the BDX App: Begin by downloading the free SIG SAUER BDX App, available for both iOS and Android devices, from your respective app store.
2. Create Ballistic Profiles: Within the app, you'll create custom ballistic profiles for your specific rifle and ammunition combinations. Input crucial data such as bullet weight, muzzle velocity, ballistic coefficient, and sight height. The app guides you through this process.
3. Pair Devices: Use Bluetooth to pair your Sierra3 BDX 2 riflescope with your BDX-capable KILO rangefinder and your smartphone. The app facilitates this seamless connection.
4. Zero Your Scope: Zero your rifle and scope at your preferred distance (e.g., 100 yards) as you would with any traditional riflescope.
5. Go Shoot! Once paired and zeroed, simply range your target with your KILO rangefinder. The ballistic solution will be instantly transmitted to your Sierra3 BDX 2, illuminating the precise holdover dot on your reticle. Adjust for windage if necessary, and take your shot with confidence.

Why Choose Sig Sauer Electro-Optics?

Sig Sauer is a name synonymous with precision engineering, innovation, and unwavering quality across firearms, ammunition, and optics. Their Electro-Optics division continually pushes the boundaries of what's possible, integrating cutting-edge technology to enhance shooter performance. The BDX system is a testament to this commitment, offering a holistic, interconnected solution that simplifies complex shooting challenges. By choosing Sig Sauer, you're investing in a brand trusted by military, law enforcement, and discerning civilians worldwide for its reliability and performance.

The Sig Sauer Electro-Optics SOSBDX33111 Sierra3 BDX 2 riflescope is more than just an optic; it's an intelligent aiming system that significantly improves your accuracy, speed, and confidence in any shooting scenario. For hunters and shooters seeking the ultimate advantage in precision and ethical performance, this scope represents the pinnacle of modern optical technology. Experience the future of shooting with the Sierra3 BDX 2, available at trusted retailers like DEGuns.

Sig Sauer Sierra3 BDX 2 Key Specifications

Feature	Detail
Model	Sierra3BDX 2 SOSBDX33111
Magnification	3.5-10x
Objective Lens	42mm
Tube Diameter	30mm
Reticle	Illuminated BDX-R1
Focal Plane	Second (Digital Focal Plane)
Optic Coating	SpectraCoat
Finish	Black Anodized
Field of View	9.40 - 27.80 ft @ 100 yds
Eye Relief	3.46"
Adjustment Size	.25 MOA
Windage Adj.	55 MOA
Elevation Adj.	55 MOA
Parallax Adj.	100 yds Fixed
Diopter Adj.	+/-2
Brightness	10 Day Settings
Battery Type	CR2032
Length	12.75"
Weight	20.90 oz
Proofs	Fogproof / Waterproof
Connectivity	Wireless Capable (Bluetooth BDX)
Firearm Type	Rifle
SKU	100967
UPC	798681587049