I did a 358 WSM. H-4895. 300/325 WSM Brass. Fed Match Mag Primers. 24" Pac Nor Barrel.
225gr SAF/NPT/TSX = 2930fps avg.
250gr HRN/NPT = 2800fps avg.
Run those numbers against the 338WM inside of 300yds!
Not much unlike the 358 Norma....
I like smaller, yet still effective cartridges these days...but think Winchester fell asleep after they stole Mr. Jamisons' design by not doing the 338/358 version.