Zg-47 is a wonderful platform for many calibers, but I would stick to the 602 for any of the longer calibers. With a 602 you can do just about anything you wish. Some people dont like the safety on the 602 being backwards - I never have worried about it - I dont use a safety anyhow.
I have a 30-378 Weatherby built on a 602 action and the thing is a great shooter, never jams, right weight, and very strong with a great scope attachment system.