Winchester Defender 5.56x45mm NATO Bonded Hollow Point 64 Grain 20 Rounds

The Winchester Defender 5.56x45mm NATO round delivers a focused option for home defense and duty use, combining a 64 gr bonded solid base hollow-point design with notched jackets to promote reliable expansion and weight retention on impact, while the brass casing and 2800 fps muzzle velocity produce about 1115 ft—lbs of energy for effective terminal performance at typical engagement distances; as part of Winchester's Defender series, this ammunition is positioned for threat-stopping scenarios where consistent feeding, predictable ballistics, and controlled penetration matter, making it suitable for AR-platform rifles used by hunters who carry defensive rifles, range instructors practicing defensive drills, and responsible homeowners who demand ammunition that offers defensive characteristics rather than target-only profiles. The cartridge's ballistics support accurate follow-up shots and practical zeroes for common defensive ranges, and its balance of energy and expansion characteristics helps mitigate over-penetration concerns in residence or populated environments, giving shooters confidence in both short-range stopping power and consistent cycling in semi-automatic rifles.