The standard jaws are too small for the 338 Lapua/Norma Magnums.
The LS jaws work with both the 338 Lapua/Norma Magnums from personal experience.
"Sheep have two speeds: grazing and stampede."
- Lt. Col. Dave Grossman
"They who can give up essential liberty to obtain a little temporary safety, deserve neither liberty nor safety."
- Benjamin Franklin