Like Mule Deer says, the 'hunting' Btip is a tough cup-core bullet.
With the 200 grain .338 bullet I have seen amazing things happen like pernt' near dividing a coyote into two two separate pieces to destroying leg bones, shoulder blades, long sections of spine and vertebra in mature elk and muleys to merely exit.
Don't dismiss plane jane cup/core bullets too easy, Even the fancy ones with colored tips... Being a good shot trumps all bullet designs.
To the OP, the ONLY time I have seen a .300 win mag 'fail' if you so choose to call it would be a fella I was elk hunting with regular factory 150 gr bullets and shot a mature cow elk right at 100 yards threw the on-side ribs. The bullet completely disintegrated inside the elk after hitting a single rib. Good thing was the vitals where disintegrated also and the cow only made it 20 yards and fell over.
