Shooting elder Don Hall shooting a clunky old 308 and low BC bullets can still whoop the arses of many a cocky young F-Open shooter shooting the latest and greatest cartridges and bullets. There is no substitute for experience.
Ian,
Was that you in Mission when Don handed me my ass like an old tattered tractor seat?
I too shoot a 7wsm(PGW Coyote) and although I haven't shot it enough to change a barrel yet, it is a very finicky calibre to reload for! While I am not a competition winning shooter there are a few people on this site that know I can hold my own in most situations, and I have owned and reloaded for quite a few precision rifles in many calibres, the 7wsm is BY FAR the most frustrating calibre I have reloaded for! On the other hand my .260 AI is one of the easiest( it shoots every combination I have tried so far very well).
These are only my own experiences but I thought I would let you know what you can expect.
Ivo