The .270 Winchester not common?!
The .270 Winchester can be found at most any place that sells ammunition. It is one of the most popular calibers ever created. If the articles you read don't specify WSM or Weatherby - it's the Winchester! The .270 Winchester was made by necking the .30-06 Springfield down to .277".
Speed:
Weatherby
WSM
Winchester
Popularity:
Winchester
WSM
Weatherby
Cost (cheapest to highest):
Winchester
WSM
Weatherby
Availability:
Winchester
WSM
Weatherby