For quality reloading equipment tools and accessories no one beats Hornady which is evident in the Hornady L-N-L Case Prep Chamfer - Large caliber. This chamber is designed for .45 caliber cases and larger and works with the Hornady Case Prep Trio and Power Case Prep Center. The key benefit of this chamfer is that it increases the consistency of seating by removing imperfections on the interior of the case neck. Of all steps involved with reloading this is one of the most critical. Chamfering is done prior to initial loading as well as after the case is trimmed.