Cutting Edge Bullets Single Feed Match Tactical Hunting .308 Caliber 180 Grain Solid Copper Hollow Point Rifle Bullets 50 Rounds MTH 308 180 MAX. The SealTite band also decreases copper fouling which is typically associated with mono-metal bullets. Our single feed MTH bullets are a high BC expanding bullet designed for hunting at all ranges. A SealTite band slightly larger than caliber diameter around the bullet eliminates fliers by preventing gas blow-by and decreases copper fouling. These are a high BC expanding bullet designed for hunting at all ranges. A unique feature of these bullets is our patented SealTite band which is a band slightly larger than caliber diameter around the bullet which was designed to eliminate fliers by preventing gas blow-by. These bullets do not mushroom but instead fracture. After 1-2" of penetration 3-4 petals break off and radiate outward from the main wound channel about 2-3" creating massive trauma. These will expand down to 1600 fps. The required twist rate for this Bullet is 1:10" or faster. Specifications for Cutting Edge Bullets Single Feed Match Tactical Hunting .308 Caliber 180 Grain Solid Copper Hollow Point Rifle Bullets: Manufacturer: Cutting Edge Bullets Gun Type: Rifle Bullet Type: Copper Expansion Projectile Caliber: .308 Winchester Cartridge Type: Rifle Bullet Weight: 180 grain Projectile Caliber: .308 Caliber Diameter: 0.308 in G1 Ballistic Coefficient: 0.6 Core Material: Copper Jacket Material: Copper/Lead Free Bullet Quantity: 50 Bullet Fabric/Material: Copper Package Contents: Cutting Edge Bullets Single Feed Match Tactical Hunting .308 Caliber 180 Grain Solid Copper Hollow Point Rifle Bullets Cutting Edge Bullets MTH 308 180 MAX: Single Feed Match Tactical Hunting .308 Caliber 180 Grain Solid Copper Hollow Point Rifle Bullets 50 Rounds