How many bullets and of what size?

"How many bullets might a person reasonably need to stop one or more violent specimens of the most dangerous animal on earth?"

“Police departments apparently believe the answer to be 13 to 17 rounds of 9 millimeter, as shown by their use of Glocks with these magazine capacities.

“When it comes to rifles, police departments believe the answer to be no less than 30 rounds of .223, as shown by their deployment of AR-15s.”

(But those are police, your anti-assault rifle friends will say.)

“The only difference between a police officer and a private citizen is that the former has the authority and duty to intervene in situations that the ordinary citizen should, or even must, avoid. If either needs a firearm for any non-sporting purpose, though, he or she needs it for exactly the same reason. The definition of a weapon that is ‘reasonable’ for legitimate self-defense is therefore, ‘Any weapon that is routinely available to law enforcement agencies.’"

The Argument that Wins the 'Assault Weapon' Debate

http://www.americanthinker.com/2013/02/the_argument_that_wins_the_assault_weapon_debate.html#ixzz2JlsGEtb6