An "Automatic" Smart Scope: The Sierra 3 BDX From Sig
The Sig Sauer Sierra 3 BDX offers an integrated smart scope solution by pairing a rangefinder with a scope via Bluetooth to automate holdovers. While it simplifies elevation adjustments by illuminating correct holdover dots, users must still manually input wind data into the app for windage corrections. This entry-level smart optic, with an MSRP around $600, is a good option for new shooters, though it has limitations like fixed parallax and a less intuitive windage dot placement.









