Chapter: Winter's Visit
When you're in a flashback with Owen, there'll be a scoreboard on the left hand side of the room with a bow and arrow.
Make a save incase you muck it up - but it's really easy if you remember to turn Auto-aim back on.
Now, here's the catch. Abby is a bit poo when it comes to aiming and struggle to compensate for aim. So get in close to the target and hit it. Hitting 11 will bet you the trophy but do that fast enough you can hit at least 14.
Once the cutscene is over, the trophy pops.