Some are much more deadlier than others. A nuclear bomb is also much more deadlier than a conventional 500 pounder. Fully auto gun are also much more deadly. They realized this in the 1930s and again in the 1980s (Reagan) did something about it. It's sad that after 80 years, the NRA gun lobby corporatists have brainwashed so many people into feeling that buying an AR-15 is a right.