"THE GUN SHOW LOOPHOLE ALLOWS CRIMINALS TO GET GUNS."
Only 0.7% of criminals got their guns from a "gun show." Yes, that's less than one percent. 40% got their guns from "family or friends" and another 40% got them from "street/illegal sources". Only 20% of guns used in the commission of crimes were actually purchased anywhere. So closing the dreaded, demonic "gun show loophole" won't do anything.
Source: US Dept. of Justice. http://bjs.ojp.usdoj.gov/content/pub/pdf/fuo.pdf
"GUNS ARE INVOLVED IN OVERWHELMING AMOUNTS OF CRIME."
Less than 10% of violent crimes involve a gun. So, getting rid of guns wouldn't make much of a difference in crime.
Source US Dept of Justice. http://bjs.ojp.usdoj.gov/content/glance/percentfirearm.cfm
"ASSAULT RIFLES ARE USED TO MURDER A LOT OF PEOPLE."
Of the 12,996 people murdered in 2010, only 373 were killed by any type of rifle. That's less than 3 percent.
Source: FBI. http://www.fbi.gov/about-us/cjis/ucr/crime-in-the-u.s/2010/crime-in-the-u.s.-2010/tables/10shrtbl08.xls
"NOBODY NEEDS A HIGH-CAPACITY MAGAZINE OR A WEAPON THAT SHOOTS A LOT OF BULLETS."
Melinda Herman, a housewife in Georgia, was confronted in her home by a home invader with a crowbar. She shot him five times, ran out of shells in her revolver, and had to flee with her children. The intruder almost got away. If there had been more than one attacker, she would almost certainly be dead.
"BANNING GUNS WOULD REDUCE CRIME."
Murders in Australia (which banned guns) and America (which did not) both dropped by the same amount: 31 percent. So, banning guns didn't make a difference. However, in Australia, violent assault rose 49% and rapes rose 30%.
Source: (Australia stats)National Center for Policy Analysis. http://www.ncpa.org/sub/dpd/index.php?Article_ID=17847
Source: (US Stats) US Dept of Justice. http://bjs.ojp.usdoj.gov/content/pub/pdf/cv11.pdf