I do not have one in 300 win mag, but have a 55 Deluxe in 243 and a 65 Deluxe in 270.
Many believe these were the best Tikka ever produced.....All done prior to Sako takeover when Tikka competed pretty much directly with Sako....Both located in Finland. (There is one gunnutz here who does not like them, but he seems to be a minority of one).
The actions are very smooth and the adjustable trigger is excellent in my opinion.
Both my rifles shoot "lights out".......The 270 has about the best wood I have seen on a non custom rifle.....I have oil finishes on both.
They are not lightweight rifles........They have about the right weight to make them steady in the hands of a good rifleman.
If you decide to acquire one, it may not be your last one !!