The Sig Sauer BUCKMASTERS Rifle Scope brings the power of Sig's Electro-Optics at an amazing value! The BUCKMASTERS feature a custom BDC Reticle that has holdover dots up to 500 yds. When paired with the BUCKMASTERS Rangefinder you can use the "Buckmasters Mode" which comes with 8 ballistic groups, to detect which BUCKMASTERS BDC holdover dot to use on your riflescope.