I think it all depends how sporting you want to be? If this is a fair chase hunt I would suggest the 270 Winchester, the 270 is a very fine rifle has plenty of energy for killing game shoots flat and is accurate! However the 6.5 Creedmoor it's a slam dunk when it comes to hunting it will kill everything from a groundhog to grizzly bear at several thousand yards in. If you take the Creedmoor he won't need the 7STW. at 500 yards the Creedmoor starts to out perform the 7STW because the 6.5 bullet starts to pick up speed after 500 yards. I know that some who read this will find the science hard to understand but remember these are the guys who do not understand how Joe Biden got all those votes to win the election ( it's magic) . I stopped using th 6.5 CM in the field because it was so unfair to those around me. I never miss, I find a deer surrender when they see me walk in to the field with a CM in my hand and I am tired of signing autographs with farmers do you have crop damage ! In all seriousness either is fine, I'll be in the field this year with my 270 Winchester. I doubt I'll be shooting over 300 yards and if I do I will not feel under gunned. Good luck to you and forgive the sarcasm.