Some news reported by Cameraland (NYC, USA) from the Shot Show for those with Swarovski Ballistic Turrets on their scopes -
"Every ballistic turret can now also be fitted with a cam that has been specially customized for your ballistic data, with your personal shooting distances legibly engraved on it. The custom-made PBC [Personal Ballistic Cam] gives hunters the chance to read several distances instead of the current three markings on the ballistic turret. They can easily read the shooting distance from the personally engraved turret, select the relevant setting in a matter of seconds, and stay on target. You can switch at any time between your personalized ballistic cam and the standard system that uses the rings, without any need for you to sight in the firearm again. The numbers and line markings are also easier to align using the index point. Adhesive labels are no longer needed to mark the distances. You can have a number of distances engraved around the cam, depending on the caliber." The turret has also been upgraded from three piece construction to a one piece making it even more durable. Available Spring 2014 onwards.