The WSM's have been pretty well wildcatted: 375, 416, 423 and 458 have been done. The 458 has been further improved with shoulder blown forward to produce the 458Alpine. Same improved case has been 9.3'd. The 350RemMag case has also been 416'd.
Sales opportunities are too limited to see factory rifles in these chamberings. Lazzeroni also had their line of short-magnums.
Cheers...
Con
