PM responded.
No they are both std sporter LW contours and have already been threaded, chambered (someone else's tools took the hickey...) and are ready to be screwed in. The 300 Win was a barreled action which became a 340 Wby and never shot. I know the 7mm Rem had been shot exactly 72 times as I sold the remaining unfired brass.
The .270 is 121X which is a 1936, the magnum action 2250x - 1938.
