Auto Aim actually throws my sniping off

I was on dominion on exile, lining up a snipe on another sniper, when-BOOM- another bad guy walks past and my aim gets thrown his direction. While I desperately try to line up my shot again, the other sniper (unaffected by his teammate) calmly pulls the trigger.

WHAT?

that stuff always happens to me.
i LOVE sniping, but auto aim is making it bit hard.

Best way to save your teammate’s life: Walk in front of them.