Honestly, this is twofer 10mm Ammo. The 180-grain Hornady round is just the ticket for self-defense or hunting small to medium game, offering power, penetration and excellent expansion in either case. Another factor that should appeal to both camps, accuracy. Surprising for a hollow point, the XTP bullet is among the most popular among target and competitive shooters. The round offers excellent penetration, with the jacket rolled over the core to ensure it defeats clothing, hide and bones. Then, it expands violently — as much as 60-percent its original diameter — aided by skives in the jacket. This minute feature ensures the bullet mushrooms, even at lower velocities and in a very uniform consistent manner. Not that you have to worry about low velocity with this 180-grain round, on average it leaves the muzzle at 1,200 fps. All in all, the XTP round punches well above its weight and is easily the jack-of-all-trades on this list.