the Army cares not a bit about barrel life.
Yes they do. This ammo doubles if not triples the LCC of the rifle. The only advantage is an increase in bullet stability between 800 to 1,000 meters. Number of combat shots at that distance - can be counted on one hand. Its a bad trade, particularly with real cuts coming to defense. Stay with what works and can be afforded.
bigger better faster more. That’s how we roll in America.