Can't be answered without knowing the caliber, bullet weight and if it is fresh or salt water.
up to 2m, the resistance is too high, the mass too little and the depending on the angle speed will go to zero very quickly.
Only a few feet. Water slows and stops bullets rather effectively.
A little over 15,800 feet
No, it's a subcalibre rimfire rifle.
I am assuming you are asking about the specialized case of it being fired on earth at sea level. If so, neglecting air resistance, a Barrett .50 caliber round fired on a flat plane at 45 degrees it...
Blind Bullet Zombie Mode Teaser Trailer
Bullet Witch - How to Beat the Final Boss
How to Play 'Bullet In The Head' on Guitar
How to Install a Bullet Light