That was a stone thrown by somebody with a very good aim.
The ocean is too rough for me to take good aim.
For Sandy, a squirt gun because he was such a good aim.
"I may have bad lungs, but I've got a good aim!"
Taking good aim again, he put a bullet just behind her shoulder.
But that isn't saying he can't take a good aim.
"I need to take a good aim or else I miss."
Still, the beast was wounded, and if she could once get a good aim, she'd be able to kill it.
This is a good aim, but we have to consider how it might be monitored.
They will have nearly four hours in which to work before the sun rises and we can see them well enough to take good aim.