are bdc reticles caliber specific?
Caliber Specific 223 55 grain cartridge, while the BDC is made for a . 308 65 grain cartridge. The BDC200 is designed for larger projectiles, such as slug guns and black powder firearms. However, all Nikon BDC reticles can be tailored specifically to the cartridge you are using with their Nikon Spot-On Software.