UNDATED (CNN) -- Almost six weeks after the Connecticut shooting rampage that killed 20 first-graders, Senator Dianne Feinstein has proposed a new federal gun ban.
The California Democrat wants to outlaw some assault rifles and semi-automatic weapons, as well as ban some high-capacity ammunition magazines. The legislation is already facing opposition.
Feinstein made her message clear Thursday: she wants guns like these banned. She says, "Once you have been through one of these episodes. Once you see what the crime scene is like, it isn't like the movies. It changes your view of weapons."
Feinstein's proposal would upgrade an assault weapons ban that expired in 2004. It would also outlaw ammunition magazines that hold more than 10 rounds.
The legislation faces strong opposition from gun rights advocates who believe the weapons are needed for protection. Celia Bigelow, Dir. Of Campus Action with the American Majority Action says, "I want a gun that can hold a lot of ammo because if I'm faced with an intruder or multiple intruders that come into my home, I want to make sure I have enough ammo to get the job done. Especially if they're armed."
Former House speaker Newt Gingrich says this is just a renewed push bring back the assault weapons ban. He says, "That's not looking seriously at mental health, looking seriously at violent games, looking seriously at violent movies, looking seriously at a variety of things which may have nothing to do with a 20-year-old proposal that in fact has brought out every single chance they have to try to extend the power of the government over individuals."
Despite the recent push by the White House and Democrats for tougher gun control measures, Feinstein's full proposal is given little chance of winning congressional approval.
The National Rifle Association says it is "confident" Congress won't pass Feinstein's measure.
Supporters of more gun control acknowledge the constitutional right to bear arms, but argue that rifles capable of firing multiple rounds automatically or semi-automatically exceed the reasonable needs of hunters and other gun enthusiasts.