This is my first post so I’m going to apologize ahead of time if this is a dumb question as I’m a newb to the custom rifle word. I’ve got some money burning a hole in my pocket so I’m looking into getting a custom rifle either built off of an existing action or just buying a completely new rifle. I currently have a Remington 700 chambered in 270 Win. that I don’t use much. For the new rifle I would like to go to something bigger like the 7MM STW, 7 RUM, or 300 RUM. I was talking to a friend about using the 270 action and re-chambering and re-barreling it to one of the large calibers and he stated that the 270 action is not acceptable for this application. Is this correct? Am I better off starting with an action from a larger, magnum caliber? Thanks.