Lyman's VLD (Very Low Drag) Chamfer/ Reamer eliminates damage to bullets caused by the sharp edges of the cartridge case neck. The long boat tail on VLD bullets are cut by the case mouth when chamfered with a standard 45 degree reamer. The sharp 22 degrees on the VLD reamer allows all bullets to slip easily into the case ensuring the best accuracy. Recommended for Sierra VLD and other manufactures VLD Bullets.