any word on 300 wsm ar-10?

[cz7]

how does the ar-10 in 300 wsm hold up and mag troubles?

[SHIVAN]

The factory version is actually a .300 Remington Short Action Ultra Mag {RSAUM}.

Apparently, the mags and feeding geometry are a little tricky with the SP hunting ammo. Though a little fiddling gets it worked out -- so I hear.