Berry's Manufacturing Preferred Plated Pistol Bullets .40 S&W;10mm Auto .401in 180 gr HP 1000/box. A longer bullet provides more surface contact with the barrel and rifling helping to stabilize the bullet and improve the accuracy. Specifications for Berry's Manufacturing Preferred Plated Pistol Bullets .40 S&W;10mm Auto .401in 180 gr HP: Manufacturer: Berry's Manufacturing Bullet Type: Hollow Point (HP) Projectile Caliber: .40 Caliber Bullet Quantity: 1000 Bullet Package Contents: Berry's Manufacturing Preferred Plated Pistol Bullets .40 S&W;10mm Auto .401in 180 gr HP Berry's Manufacturing 25894: Preferred Plated Pistol Bullets .40 S&W;10mm Auto .401in 180 gr HP 1000/box