Thread: Swarovski Z5 vs Z6 differences

I'm looking to grab another scope for my 7mm RM (sako 75). Ideally looking at a z5i 3,5-18 x 44 BT 4W but they are scarce on the ground here. There are a few Z6i 2.5 - 15 x 44 BT's kicking about but another 1K+ for the ownership privilege. My questions for those in the know are:

1. With the BT and a 30 mm tube in the Z6 are you still limited to 13.5 moa equivalent elevation after you set the BT as per the Z5?
2. Is the tube length of the z6 long enough to straddle the big 75 action (375 H&H length) and adjust the eye relief back or forward as needed?
3. Any advantage to going to the Z6i?

Thanks,
Dicko