have you bothered to check the ADI reloading data on their website? there is plenty of info out there on 6.5x284's as its a very popular cartridge here and overseas. plug it into google along with what bullet amd powder you intent to use.
same goes with 308
in my x284 im going with 50.5gr of 2209 with a 140 which is getting up there, but in my opinion if your not going to run it faster than 2800fps then your better off staying with a 6.5x55/260 etc
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