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No experiance, but I’ll bet you’d have to shoot a whole box of ammo in three shot bursts to get three of them to magically land in a 3/4″ group. With Partitions? Riiiiiiiigggggghhhhhht………….
Anywho, you can certainly get the same velocity, if the rifle is in fact a Weatherby. They throat those things a mile long so they can intentionally be overloaded. Let your case head diameter be your guide.