Yes, been around the block, why "true"? Seems like a strange and misleading term...would be a true 7.2 mm bullet, to me, at leastThe caliber is the barrel diameter between lands, not the bullet diameter. A 7 mm (.277 in) bullet is fired out of a 6.8 mm (.270 in) barrel. A 7 mm (.277 in) barrel fires a 7.2 mm (.284 in) bullet.