These bullets have swaged guide cores and therefore are then copper-plated. Just after copper-plating, every projectile is re-struck to ensure that the plating is regular as well as the sizing is accurate. Berry's bullets is a family members owned company as well as their products are created from the USA. https://emilianowirbl.thezenweb.com/the-5-second-trick-for-hornady-380-bullets-for-reloading-74998913