So what would you like to use this gun (I'm assuming a rifle) for? Your .270's should kill anything down there just fine. If you are looking for something new, maybe look into a Kimber or Sako in .300wsm. Either would be very fine rifles, in an excellent caliber. Another option would be taking a used grade 3-5 Weatherby off someone looking to sell. Maybe in .257 weatherby?
Throw us some more information and I'm sure you will get a plethera of ideas from guys on here.