Given that you own a 243, and a 300 win mag, you are right you don' t NEED another gun. I will give my 2cents though. I really like the Short mags (I LOVE my 300 WSM), and would recommend you go with the 270 if the new gun is going to be mostly replacing the duties of the 300 win mag, if however you are looking for something to use instead of the 243, the 25-06 is more suitable. My opinion scrap both the ideas and get a 257 Roberts [8D]

Gordon