I have nothing against a 6.5 caliber. In fact, I had an uncle who swore that the 6.5 Swedish Mauser was the absolute bomb on white tails. Still, for more versatility I'd lean toward a .270 or aught-six. Actually, I'd buy a 6.5, a .270, a 30-06, AND a 7mm mag. It's only money and we aren't taking it with us, right?
I have been shooting a 260cal browning with a leupold 3-9 40mm varix 2 for 15yrs+. The 6.5creedmore vs the 260; they are basically the same. I shoot mostly short distances 175yrds and shorter. I’ve shot literally dozens of deer with this gun. Does and 200lb+ mature bucks. I’ve never lost one deer due to knock down power of this caliber. I agree that the 260 entry and exit wound of the deer I’ve shot do not compare to my 270, 7mm or 45-70.
I originally bought this gun for then my 14yr old daughter. I originally had planned to purchase her a 243 but was talked out of it due the smallish bullet and the knock down power. Daughter never got to keep the gun due to the flat shooting and reduction of recoil compared to other caliber guns that I had been shooting. On the bench this gun is tack driver at 100yrds+. I love this gun!