600m with factory ammo with practice is doable, 800m handloads with a bit of skill and good gear e.g. good dail up scope, Ballistic app, rangefinder, windmeter if shooting in any. Your gona need plenty deep pockets to run a 300wsm with the trigger time needed to shoot that far on targets even before nocking a deer over.
What setup are you using at the moment?
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