I have and have had .338WM rifles in McMillans-5, MPI-Dakota 76 factory-1, Rimrocks-2, Clifton-1 and Browns, can't recall, but, have six now and have owned/used seven over some 31+ years with plastic handles.

I also have several rifles with Micky Edge stocks, Edge fill and my largest is a Brno ZG-47 in 9.3x62, which I am a tad nervous about.

I would NOT use an Edge-Edge stock for a .338WM, I load 250s only and much prefer 24" of tube, but, have shorter ones.

YMMV, JMHO after many years with this round.