I had 3 x 300 win mag rifles and sold off all but a ruger m77 mk2 stainless with the zytel stock that I truly love.
The 06 goes hunting as much as the mag does.
If I'm hunting big timber clear cuts that extra bit of snot & flat trajectory the mag can deliver helps.
Both are head over heels above the old 303BR tho the lowly limey round has taken an awful lot of canadian moose over the years.