The 7mm WSM was introduced by Winchester in 2002 together with the 270 WSM after the release of the 300 WSM in 2001. It is loosely based on the 404 Jeffery case shortened and necked down.
The 7mm WSM was introduced by Winchester in 2002 together with the 270 WSM after the release of the 300 WSM in 2001. It is loosely based on the 404 Jeffery case shortened and necked down.