Use whichever you like, either one of those two will blow through an antelope....least my .270 with 130gr soft points does...

which is why I picked up a .243, my friend was using 95gr nosler partitions and those also went right through. antelope are pretty small animals.

If you have a .243 I'd say take that, but if its between the .270 or .30-06, pick the one you like.

Last time a bunch of us got together, one guy was shooting 125gr from his '06.