Yes, if you're willing to take someones life then you don't deserve your own. Of course there are exceptions, such as people that are defending their family, home, or country. But a serial killer for...
The historical cartridge used in the .30-30 lever action rifles/carbines had/has a rounded nose to prevent ignition of the primer in the cartridge directly ahead in a tubular magazine. Recently...
If you have ever been caught in an automatic weapons crossfire at night you will have seen tracer bullets collide and ricochet off at crazy angles. Those are full metal jacket bullets.