Ultramax 10mm Auto 180 grain Jacketed Hollow Cavity Pistol Ammo 50 Rounds. This Ultramax Ammunition features Jacketed Hollow Cavity (JHC) bullets that deliver powerful stopping power pinpoint accuracy and predictability. With daily deals on Ammunition and other top-tier pistol ammo from trusted brands like Ultramax you re sure to find the best round for your field or range use. Stock up today to save big on ammunition and other top-tier tactical hunting and outdoor gear at OpticsPlanet. Specifications for Ultramax 10mm Auto 180 grain Jacketed Hollow Cavity Pistol Ammunition: Manufacturer: Ultramax Caliber: 10mm Auto Number of Rounds: 50 Bullet Type: Jacketed Hollow Cavity (JHC) Bullet Weight: 180 grain Application: Target Package Contents: Ultramax 10mm Auto 180 grain Jacketed Hollow Cavity Pistol Ammunition What is Ultramax 10mm Auto 180 grain Jacketed Hollow Cavity Pistol Ammunition good for? The manufacturer says that it is suitable for target.Ultramax ULT-10MM-1-N: 10mm Auto 180 grain Jacketed Hollow Cavity Pistol Ammo 50 Rounds