Uh, I never mentioned one round.
You won’t be emptying the clip though.
And it will be very, very intent on killing you.
And it can move very, very fast - which you seem to not grasp.
You are making a lot of ASSumptions. And yes, you write of “a 5.7 round”. Leaving out multiple rounds. Go borrow some money from mom and get the pistol. You will be glad you did.