Fairly sure you can find all the above in factory... you could at one point in 300 wtby for sure....
Bwalker
Which one has a 60 year history, simply curious. Partition? I"ll tell you, why don't you just ask JB, he'll tell you a 200 is fine, but a 180 is frangible. Just how it goes. Run a 200 partition, in a 300 mag and I'd be fine. But like I said, I found something that makes me even happier than that.
I"ll continue to strive for 2 holes and no risk.
But if I ever knew that a bullet could make it FOR SURE through any angle, bones and any distance shot at, and expend all its energy inside the animal, I could probably forgo the 2nd hole, though it always makes for better blood trail.