Given the right set of circumstances, yes.
No, you will not be allowed.
Better is a very general team, and you need to have specific models in mind to compare any.
Yes the ray gun is lethal, the ray gun is one of the most powerful guns in nazi zombies
A Ray Gun is commonly mistaken for its real life counterpart, the Water Gun. A Water Gun can be an extremely lethal weapon when in your command. Though it is lethal, there have been many misuses of the gun due to reckless children.
The AK-47 is the most lethal gun because you can learn how to use it in one hour or less. It is also the most produced weapon in the world.
9mm beretta
Any gun is capable of being lethal. If you wanted a "most lethal", maybe the 155mm howitzer, which is capable of launching tactical battlefield nuclear nuke.
it shoots a lot of bullets in a short time
Gun stores which also cater to non-lethal/less lethal defence needs will typically carry them, and you might find them at military surplus stores and the like. You can also order them online.
out? probably 2% with goggles 0%
You need legal counsel to answer this question. It depends on a number of factors - particularly, the circumstances under which he pulled a gun on you. In most states, the laws of deadly force allow the use of lethal force (pointing a firearm at someone, even if you don't shoot them, is considered use of lethal force) in instances where there is an imminent threat of death, maiming injury, or rape.
The question is a bit moot. All guns are capable of being lethal.