R16 is a good substitute for R17. Similar loads and velocities with out the drama and temperature sensitivity. In my 270 WSM R26 works well but for the 300 I would try R23 first as it shares the good manners or R16.
"When you disarm the people, you commence to offend them and show that you distrust them either through cowardice or lack of confidence, and both of these opinions generate hatred." Niccolo Machiavelli
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