These bullets have swaged direct cores and therefore are then copper-plated. After copper-plating, each individual projectile is re-struck to make sure that the plating is dependable plus the sizing is accurate. Berry's bullets is actually a family owned organization as well as their products are made while in the USA. https://remingtonqblwh.blognody.com/41334821/100-grain-9mm-bullets-for-reloading-an-overview