How to Acquire
Either Emily Kaldwin or Corvo Attano must kill an enemy by deflecting a bullet fired at them. For that, the supernatural ability Reflexes must have the Superior Deflection upgrade, allowing the protagonist to deflect projectiles by parrying. Enemies who can fire pistols are Elite and Veteran members of the Grand Serkonan Guard, Overseers and some assassination targets. The achievement is completed once the target dies from the redirected bullet.
An alternative option is to use Bend Time with the Stop Time upgrade. By using Stop Time, firing a bolt or bullet, stepping in front of it, and then resuming time the protagonist will die by their own projectile and the achievement will be granted.