I had the same thoughts a couple of months ago when making up my first loads for my new Tikka 300wsm. Had been using standard win large rifle primers in my 308, but decided to go for federal match large magnum primers for the 300wsm new load.
Have settled with 65gn 2209, 165sst and 165 Interbonds with the fed match lg mag primer.
Shoots pretty good & makes big holes in Deer!
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