Swarovski now offers their Personalized Ballistic Cam (PBC) for the Z6i/BT models. This pre-engraved drum replaces the separate rings of their BT system to offer a seamless BDC turret pre-set to your individual calibre requirement.

The dedicated and more precise approach that PBC offers differs from its competition in that they tend to use data and features that try to cover a broad spectrum of loads and calibres.