Boss Hoss, you got darn lucky.......
Brother and I both lost white tails with the 7 Mag shooting the 150g Match king at 3150, and not just one animal each. Shots were not close where the bullet would blow up, being 150 yds plus on multiple animals. I knocked one buck down, he was trying to get up and I shot him again in the neck, bullet blew up on the spine on the second shot and did not penetrate; first shot blew up on the shoulder blade.
Boss Hoss, you had great luck, I and brother had dismal luck...Match king is the answer....sometimes they work and sometimes they don't.
The 150g Sierra Sp BT however is a fine hunting bullet and has never failed us.
I shot the sierra 52g BTHP Match and 53g HP on p. dogs at 3550, and they penciled their way through the p. dogs, in a 14 twist 22 PPC. The rifle was accurate enough for me to take shoulder shots on p. dogs.
However, the same bullets did a really fine job on coyotes with never a failure.
70g Sierra MK also did not do a great job on p. dogs out of a 14twist 6 BR and 243 win, but did ok on yotes....better bullets for yotes.
The heavier the bullet, the more apt it is to kill the animal with just the bullet's core if/when the core seperates from the jacket.
Years ago, I shot deer with the 308 and 168g Match king; I found out that the 165g HP Game king was a much better bullet for deer.
I made Benchrest bullets for years. It amazes me at how accurate regular hunting bullets are today. The current cult following for using a bullet with the very highest BC has folks leaning towards Match Kings and target bullets with the highest BC, which is understandable.
It is very humilating to loose a trophy animal because of obvious bullet failure. I guarantee you that it will only happen to you one time.
If you are shooting a 180-220 g Match king on deer in 30 Caliber, I would feel as if the core itself would pole ax the animal, unless you contact bone and the point folds back over it's self, which is rare.
I had a friend that shot the 120g 6.5 Match kings at 3600+ and he never lost a deer...go figure.
The bullet is the cheapest part of the hunt.