A single simple DUI is not likely a felony. I see no evidence that is at issue here. Multiple DUI establish a pattern of behavior and may become felonious depending on the local jurisdiction. Felonious multiple DUI in Wisconsin makes news for being so unusual.
Thanks to The Federal Gun Control Act of 1968, if the crime has a sentence of more that a year in jail, it will label you a felon. You will be prevented from owning a firearm... BUT many states now have Bills passed that after a
misdemeanor or felony, non violent offence, you can get your gun rights back 10 or 20 years respectively from the date of sentencing.
Here is part of The Gun Control Act of 1968 that talks about the one year sentence making it illegal for you to have gun rights:It shall be unlawful for any person to sell or otherwise dispose of any firearm or ammunition to any person knowing or having reasonable cause to believe that such person— (1) is under indictment for, or has been convicted in any court of, a crime punishable by imprisonment for a term exceeding one year; (2) is a fugitive from justice; (3) is an unlawful user of or addicted to any controlled substance (as defined in section 102 of the Controlled Substances .
Here is a link to the information:
http://en.wikipedia.org/wiki/Gun_Control_Act_of_1968