I worked for a large federal contractor for 10 years that had as one of its largest contract, a research and certification contract for DOJ/NIJ. Among the many types of equipment we certified was police body armor. I've personally seen a LOT of rounds fired into all sorts of body armor in the certification process, under very controlled conditions.
The vast majority of LEOs in the US use Level II armor. This will protect you from most handgun rounds, up to and including +P+ 9mm, however, it is not guaranteed against .357 magnum FMJ at high pressures, or .44 Magnum FMJ. And it won't do squat against ANY rifle round, including 22LR...
To get protection from rifle rounds, you need to go to Level III, but that will only protect you from REALLY slow rifle rounds. High velocity rifle rounds (high-pressure .223s, .308s, and rounds like the 6.5 Lapua) require Level IIIA or Level IV (which have rigid ballistic plates)...
So, technically, ANY current production deer rifle or decent "varmit" rifle uses "cop killer" bullets, because they will easily penetrate the body armor used by most police.
The term "cop killer bullets" is complete and utter BS. They classified the infamous "Black Talon" as a "cop killer bullet", even though the coating on the bullets was ONLY there to prevent fouling in the barrel, and to prevent corrosion on the bullets during long-term storage, or exposure to weather. The fact is that the Black Talon would NOT penetrate Level II body armor. And the fact is that the current Winchester PDX-1 is essentially the EXACT same bullet as the Black Talon, minus the polymer coating...
Maddow is a ridiculous puppet of her puppet masters, and if she didn't have a teleprompter and a squad of staffers with internet connections, she couldn't research her way out of a wet paper sack.
The final lie she spews that I found COMPLETELY egregious, was that she stated you could not Google gun laws in the US. What complete and utter BS. If I had to go to the library every time I wanted to look something up, I would never post on this forum. Every state has their gun laws online. The ENTIRE body of Federal Codes are is online. Either she is a lying sociopath, or she is a complete idiot when it comes to research on the Web. Either way, she advises her audience "not to even try to attempt to research this yourself". She lies about the MASSIVE body of gun laws easily available on the Web, then she tells people not to research it themselves. In other words, "What I'm telling you might be complete BS, but as an anointed authority, I'm ordering you NOT to try and find anything out for yourself..." Disgusting... Utterly disgusting...
How Rachel Maddow got a Rhodes Scholarship baffles me. She can't do research. She's a terrible public speaker. She stumbles over her words. She doesn't understand basic logic or rhetoric. And you know that she sure as hell didn't sleep her way to success...
I can't watch MSNBC any more. I have a REALLY nice, high-end Toshiba High Def TV. I can't take the risk of throwing something at it when lying, duplicitous, propaganda-spewing sociopaths like Rachel and Keith Olberman are on...