May want to consider the bbl length offered on both of those factory offerings!!!!!
My 26" barreled 300WSM, 180Accubonds @ 3100+ outruns my 24"piped 300Wby, 180 Accubonds @ 3076 & only 3 loads per Wby brass. No joke!
A 300Wby with a 24" pipe is so severely handicapped that its rediculous to own one IMO, & is almost a ballistic twin to a 300Win with a 24" bbl, but cost a lot more to shoot.
If it were me I'd only consider the 300Wby in a Mk-V or other 26" barreled factory offerings if there are any.
If its a Vanguard S-2 or a Tikka I'd look only at 300Win, & 300WSM. They can actually perform well with 24" tubes.
Just something to think about......
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