The Lapua brass are stamped Lapua on the head. The brass are brass colored. The 6x47 Lapua uses 6mm diameter (.243 caliber) bullets. The 6.5x47 Lapua uses 6.5mm diameter (.264 caliber) bullets.
Most are chambered in bolt action rifles. Those are rifles that you have to manually chamber a cartridge by utilizing what is called the 'bolt' that slides to and fro in the receiver. Attached to the bolt is a bolt handle to help in this action. There are also other parts such as ejectors/extractors but we'll get to those later.
