No, and it doesn't vary between states because it's a matter of federal law. Having a felony expunged does not make it go away - it only removes it from the public domain. You still remain a convicted felon, and thus may not purchase, possess, or have access to firearms.
No, they cannot.
It depends on what you mean by "ex" felon. If the felony has been expunged or otherwise removed, the answer is maybe, but you should check with a local attorney familiar with firearms laws. If you simply mean "out of prison" but the felony is still on the person's record, the answer is no, at least in the U.S. Felons are not allowed to own or possess firearms in the U.S.
If a person has a felony you cannot own a gun. It does not matter how long you have had the felony.
Persons convicted of crimes other than minor traffic violations are not permitted to own firearms. They can apply, but will be turned down almost immediately - you may as well not bother.
Not unless you've petitioned the state to have your firearms rights restored. BTW; Expungement only removes your record from the public portion of your records, law enforecement, the courts, and government agencies still have access to it.
Having it expunged doesn't restore your firearms rights - you remain a convicted felon, and thus, are prohibited from possessing a firearm under federal law. If it is only a felony at the state level, it MIGHT be possible to have your firearms rights restored. You'll need a lawyer to give you a more insightful answer here. If it's a federal felony, you can pretty much forget it.
Too many factors to give you a simple answer. This depends on whether the felony was for a Federal or State charge. For Federal, sorry, no. For State, depends on the laws in your state. It also depends on what license you want to get. For an acccurate and current answer, you need an attorney licensed to practice in your state, and not Answers.com
No. Convicted felons may NOT own or possess firearms.
Normally as long as the person has no felony record, they can own a firearm. A case sealed or expunged has the same effects as not having occurred in the first place. So, in short, the answer is yes.
No. Expunged only means it's not visible to the general public - it doesn't make your felony conviction go away. You still remain a convicted felon, your felony conviction will show up on any background check done on you, and you can't own, possess, or have access to firearms under federal law.
No you can not buy or posses a gub with an expungment , what you want is called a 17b motion , this reduces your felony to a misdeameanor so you can again own a firearm legaly.
If the person is a felon, no. In the United States, felons cannot own or possess firearms at any time. If it is not for a felony, it depends on the terms of the probation, but the answer is, probably not.