I've used Game Kings for 40 years right from 22 to 338 on probably 40 to 50 animals. Most were with a 270 until I started using 7mm 5 or 6 years ago. I have never had a Game King come apart and usually find most on the far shoulder. I also have loaded for a friend and his son-in-law for 15 years or so and they have the same results. The only bullet I've had blow up has been a 160 gr Nosler Partition out of a 280 Ack on a cow elk. If anybody wants a box of Partitions with 48 bullets left they can have them.