The terrorists fired over 200 rounds in last night's gun battle with police.

[Nuclear Unicorn]

96. A reasonable limit would be what professionals and hobbyists find to be most practical.

30-round magazines are standard issue and most popular.

no citizen should ever expect to have to take on numerous baddies with numerous assault weapons.

No one expects to get into a serious car accident, either. And, again, police carry semi-automatic rifles not because they are assaulting fortified positions but because in the course of their duties they predominantly encounter singular criminals. Their professional experience has presumably taught them that a semi-automatic rifle is best for gaining the tactical advantage. They also carry 30-round clips to also confront singular criminals -- not for mass-killing -- and not one of them ever complained of having too much ammunition at the end of the encounter.

Regardless, THAT is what our police force is for.

More fictions.

The Constitution was well-aware that constabulary agencies existed in its day and yet the right to personal self defense was codified. Nowhere does it presume citizens are expected to wait passively for the police that entire premise was shot down in both the Heller and the McDonald decisions.

In the real world, citizens don't go all out John McClane style taking out a dozen terrorists or criminals with assault weapons.

You're right. They don't. So why bother making up such a ridiculous statement? Lying only makes you look like a liar.