Thread: Which scope?

Hey team. Ive got two scopes and cant decide which one would he better for my 308 and 223. One is a Minox zx-5 3-15×56 and the other is a Vortex Viper 4-16×50. Both 30mm tubes. I do stretch the 308 out to 600m from time to time. 223 nothing past 200m.
Which scope should i use on each rifle?

Any help would be much appreciated.

Cheers