I wonder what 'roo tastes like.
Probably like everything you've never tried, someone will tell you "It tastes just like chicken."
Getting back to the matter at hand, a 70mm scope is going to be VERY heavy. I have a pair of 11x80 binoculars for astronomy and double-duty for spotting at the range, but only when mounted on a camera tripod. They're too heavy for me to hand-hold. I should think a 50mm scope objective would be enough.