i heard on the news today the antigunners are really getting after this one because it supposedly pierces body armor which it could but only with proper ammuntion designed for armor piercing which is already highly regulated as we all know, if their worried about it so much...... I think if i were a cop wearing body armor i would be more worried about being shot by a BFR in 450 marlin then the five seven for starters that 5.7 mm round doesnt have whole lot of energy anyway so after penetrating body armor it would use most of it energy up, id imagine by the time it got through the kevlar it would have hardly any energy maybe that of a 22 short... the 450 marlin on the other hand though in a soft point round may not pierce body armor but imagine just the brute force of the hit, if you didnt die from the shock, i bet the internal bleeding and blood clots from bruising will get ya. anyway just had to throw in a few more cents on this one, the anti gunners and their rediculous efforts.