I picked up another box of this winchester white box ammo, and when I talked to the guy at the store, who is a retired police officer of 30 years, he told me what I got is overstocked police duty round, and he also told me the FBI uses this same ammo. Its basically winchester PDX1 and they are in fact black talons. Thing that has me worried, this is a FBI police duty round, and if I ever have to use it, would I get in trouble. These rounds have very sharp serrations and are very nasty. They make a 3 inch cavity, and penetrate just under 13 inches on gel tests. I only paid 19 bucks for a box of 50. Tomorrow I will run one box though my .40 shield to be sure of any issues. Thanks all.