I just started to play fallout new vegas and i noticed that it takes a LOT of bullets to kill one person.
It is really getting on my nerves because i cant kill anyone.
My game has the latest patch and is on steam, I play on hardore mode.
Can anyone help me?
You're probably going up against armored enemies with lousy weapons and standard ammo, which is typical for starting out. The DT system works much differently than Fallout 3's DR system did; your attacks have to overcome the enemy's damage threshold, or they're not going to do much at all.
Stay away from the tougher, armored enemies until you've leveled up a bit and gotten some better weapons with armor piercing ammo. If you have no choice, try for head shots. Use cover and keep moving around so enemies have a harder time hitting you.