Underwood Xtreme Defender ammunition in 10mm Auto delivers a 115-grain solid copper bullet at 1700 feet per second, generating 738 ft lbs of muzzle energy. This new production round uses boxer-primed, nickel-plated brass cases that are reloadable and non-corrosive. The projectile features a sectional density of 0.102678571428571, which describes how effectively the bullet’s mass is distributed to overcome resistance. With a bullet diameter of 0.4 and a ballistic coefficient (G1) of -, this ammunition travels at supersonic velocity. The round contains no lead and is safe to use in a suppressor. Each box contains 20 loaded pieces of ammunition.
Underwood designed the Xtreme Defender as an effective choice for both hunting and self-defense applications.
