RE: Wildcatting a SAUM or WSM
the 243/223 from Winchester will be winchester super short magnums. like the other short magnums, a solution to a problem that does not exsist and an answer to a question unasked. all the short magnums offer over a magnum is ease of reloading since they are not belted. performance gain a 100fps, is no great gain, nor is the "improved" accuracy.