Eastmans’ reviews the new features of the version 2.0 Sig Sauer BDX system. Sig has made BDX even easier to use for hunting and shooting. You can now customize your reticle with your choice of eight common ballistics profiles. It’s simple. All you need to use these custom reticles is the Sierra BDX riflescope. You still have the option to customize even further using Sig Sauer’s free BDX smartphone app or BDX rangefinders. Become a more efficient and effective fair chase hunter with Sig Sauer’s BDX system.