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Questions & Answers
Includes range finder, correct ? Talks to scope via Wifi . Thanks JTH

The SigBDX app is all that uses WiFi to update Ballistics data. All three devices Sierra, Kilo and Application communicate via Bluetooth.

by James Mahan, Verified Owner, October 26, 2021
What is the highest caliber rifle this scope rated to withstand?

When I first started buying scopes for my rifles, I thought the more powerful the scope the better. However, after, I received a bit of wisdom from the professionals; I found that my consideration of which scope to buy was incorrect. I found that all of the good scopes could handle whatever caliber you put under them. However, what I was missing was the consideration of range to zero and the range of the projectile. As an example, if I were going to mount a scope on a 22LR, most likely a 2.5 or 3.0 to 8 power would be more than enough to zero at 100 yards, be able to see targets at 15 to 25 yards, and could handle targets up to 300 yards. Higher power scopes, obviously, are better at ranges beyond 300 yards, and not as well suited for close targets because of the higher magnification. My recommendation, if you are considering the Sig Sauer BDX3 2.5-8X32, which I have mounted on a 22 WMC and it is perfect for the rifle. Do not worry about the caliber the scope can handle. My experience with this scope, it will have no problems handling whatever the caliber of rifle it was mounted too.

by Larry, Verified Owner, September 24, 2021
Customer Reviews
Helpful Positive Review Crossbow Scope by Mark1958, Verified Owner, January 16, 2020
Bought this for my Ravin R-20 crossbow and all I can say is wow !!! Combined with Kilo 2200 Rangefinder and I can reach out 70 yards easy. Just down load the Sig BDX app and you will have a tack driver in no time!
1/1 found this helpful
Helpful Positive Review Sig Sauer Sierra3BDX 2.5-8x30 by Kestas69, January 27, 2020
Bought this scope for my crossbow and paired it up with my BDX rangefinder and iPhone. Watched instructional videos and all process took me a few minutes. It’s really that easy. The scope is solid and glass is good. All technology works as advertised...
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4/4 found this helpful
Read All 2 Reviews
Reticle: BDX-R1 Digital Tube Diameter: 30 mmReticle Focal Plane: Second Focal Plane (SFP) Color: Black Weight: 1.21 lbAdjustment Click Value: 0.25 MOAAdjustment Type: MOA Additional Features: Waterproof, Fogproof Condition: New

Code: SD9-RS-SIERF-SOSBDX32111

MPN: SOSBDX32111

UPC: 798681610570

List: $599.99Save 33%
$399.99

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Product Info for SIG SAUER Sierra3BDX 2.5-8x32mm Rifle Scope 30mm Tube, Second Focal Plane

The SIG SAUER SIERRA3BDX 2.5-8x32mm Rifle Scope is a compact and lightweight Rifle Scope designed for ultra-lightweight rifle shotgun muzzleloader and crossbow configurations. The included BDX technology provides your exact holdover dot location on targets when coupled with a BDX capable KILO rangefinder. Featuring exceptional SpectraCoat lenses LevelPlex digital anti-cant and KinETHIC kinetic energy transfer indicator the SIERRA3BDX 2.5-8x32mm is incredibly simple to use. Range a target put the holdover dot on target pull the trigger impact.Integrated BDX Ballistic Data Xchange. A rangefinder and Rifle Scope system that uses ballistics environmental conditions and Bluetooth to illuminate the exact holdover dotAutomatic holdover dot on a Digital Focal Plane combining Second Focal Plane stadias with an OLED illuminated ballistic holdover dot that automatically scales with zoom to subtend on target at any magnification level.Updated SIG BDX App now include profiles for crossbow ballistics through entering bolt weight and speed.SIG SAUER MOTAC (Motion Activated Illumination) that powers up when it senses motion and powers down when it does not. Provides for optimum operational safety and enhanced battery lifeSpectraCoat highly efficient ultra-wide broadband anti-reflection lens coatings reduce surface reflections to extremely low levels across the entire visible spectrum providing superior light transmissionSIG SAUER?s innovative KinETHIC kinetic energy transfer indicator. KinETHIC provides assistance in assuring an ethical hunt by indicating when energy on target drops below a threshold that can be set by the hunter using the SIG BDX App.New for BDX Rifle Scopes Auto LevelPlex automatically increases digital level sensitivity on longer shotsDependable waterproof (IPX-7 rated for complete immersion up to 1 meter) and fog-proof performanceThe SIERRA3BDX is covered by SIG SAUER?s INFINITE Guarantee and Electronics Limited Warranty SIG BDX APP Now includes the ability to create multiple profiles for both firearms and crossbow ballisticsimage

WARNING: California`s Proposition 65

Specifications for SIG SAUER Sierra3BDX 2.5-8x32mm Rifle Scope 30mm Tube, Second Focal Plane:

Manufacturer: SIG SAUER
Objective Lens Diameter: 32 mm
Magnification: 2.5 - 8 x
Reticle: BDX-R1 Digital
Tube Diameter: 30 mm
Reticle Focal Plane: Second Focal Plane (SFP)
Exit Pupil: 8.8 - 4 mm
Field of View, Linear: 13.2 - 39.8 ft at 100 yds
Eye Relief: 4.41 - 3.46 in
Color: Black
Weight: 1.21 lb
Adjustment Click Value: 0.25 MOA
Length: 11.59
Adjustment Type: MOA
Parallax: 100 yds
Adjustment Range: 0.25 MOA
Optical Coating: Anti-Reflective
Water Resistance Level: IPX-7
Magnification Type: Variable
Additional Features: Waterproof, Fogproof
Condition: New

Features of SIG SAUER Sierra3BDX 2.5-8x32mm Rifle Scope 30mm Tube, Second Focal Plane:

  • Integrated BDX Ballistic Data Xchange. A rangefinder and Rifle Scope system that uses ballistics, enviromental conditions and Bluetooth to illuminate the exact holdover dot.
  • The updated SIG BDX App now include profiles for crossbow ballistics, through entering bolt weight and speed
  • Features our MOTAC TM (Motion Activated Illumination) that powers up when it senses motion and powers down when it does not. Provides for optimum operational safety and enhanced battery life
  • Automatic holdover dot on a Digital Focal Plane, combining Second Focal Plane stadias, with an OLED illuminated ballistic holdover dot that automatically scales with zoom to subtend on target at any magnification level.
  • Spectracoat TM highly efficient, ultra-wide broadband, anti-reflection lens coatings reduce surface reflections to extremely low levels xacross the entire visible spectrum providing superior light transmission
  • SIG SAUERs innovative KinETHIC kinetic energy transfer indicator. KinETHIC provides assistance in assuring an ethical hunt by indicating when energy on target drops below a threshold that can be set by the hunter using the SIG BDX App.
  • New for BDX Rifle Scopes, Auto LevelPlex, automatically increases digital level sensitivity on longer shots
  • Dependable waterproof (IPX-7 rated for complete immersion up to 1 meter) and fog-proof performance

Package Contents:

  • SIG SAUER Sierra3BDX 2.5-8x32mm Rifle Scope 30mm Tube, Second Focal Plane

SIG SAUER Sierra3BDX 2.5-8x32mm Rifle Scope 30mm Tube, Second Focal Plane Orderable Models

List of Orderable Models

SIG SAUER Sierra3BDX 2.5-8x32mm Rifle Scope 30mm Tube, Second Focal Plane, Black, BDX-R1 Digital Reticle, MOA, SOSBDX32111 , MPN: SOSBDX32111 , UPC: 798681610570 , Code: SD9-RS-SIERF-SOSBDX32111

SIG SAUER Sierra3BDX 2.5-8x32mm Rifle Scope 30mm Tube, Second Focal Plane Unavailable & Discontinued Models

List of Unorderable Models

DEMO, SIG SAUER Sierra3BDX 2.5-8x32mm Rifle Scope 30mm Tube, Second Focal Plane, Black, BDX-R1 Digital Reticle, MOA, SOSBDX32111 , MPN: SOSBDX32111-DEMO , Code: SD9-RS-SIERF-SOSBDX32111-DEMO
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