User blog comment:Cfp3157/Guerilla Warfare Tourney- Round One: The Desert Fox vs Celina Lucyna/@comment-5559147-20130116160946/@comment-4552610-20130117211428

The HK 4.6×30mm was made to punch through body armor. To do that, it needs to be small but powerful as hell. The .45 doesn't have that kind of power.