This is a Winchester Ammunition Jacketed Hollow Point known as the PDX1 Defender chambered in 40 S&W, model S40SWPDB1.
Engineered to maximize terminal ballistics as defined by FBI test protocol" PDX1 Defender ammunition provides maximum stopping power for the ultimate in personal defense. Winchester's innovative bonding process welds the jacket to lead core for improved penetration" 1.5x expansion and the proven performance you rely on when the stakes are high.
Features:
40 S&W
1,025 Feet per second
180 Grain bonded jacketed hollow point
20 Rounds per box