Back during Russia’s Afghanistan war, there were reports of a new soviet field weapon, the AK-74, which was the AK-47 rechambered for a more powerful charge and different bullet design. As I recall, the point of the redesign was in fact to manipulate the center of balance of the bullet. The redesigned bullet capitalized on the tendency of narrower rounds (5.56 v 7.62mm) to tumble upon striking a flesh (gel) target. Reports out of Afghanistan were of sensational amounts of internal damage from penetration by the new round as it crawled around inside.
Bottom line is, *all* these cartridges were designed for BATTLEFIELD use. The entire point of a battle weapon is to take individual enemy soldiers out of the fight, whether it’s thru med-evac, kill shot, blood loss, shock, or organ damage. Taken as a whole, the US military decided it was an effective caliber & an effective firing platform. Now they’ve chosen a more powerful, more lethal battle caliber & firing platform - also intended for civilian sale.
OTOH, they’re less than stellar for hunting anything you want to eat or mount (from all reports I’ve heard: “yeah, you can, but…” isn’t a ringing endorsement) but they’re just fine for trash predators, vermin, & pests.
Of course, taking care of the occasional coyote, bobcat, or puma doesn’t require military grade preparation