Kaianuanu,
I agree with dog1 - For safety reasons don't use the 270 during spring turkey season where other hunters are in area!
I have shot turkeys with my 270 (legally) during rifle deer season. Don't see any difference in the bullet used - All make a small hole going in and a baseball size hole exiting! So...If you do shot one, Try for a head/neck shot or Shoot one coming toward you - NOT going away!