This is absolutely something that you can pursue, although you will need to get out from under the felon-possession ban first.
The two best ways to do that are:
a) getting your felony conviction expunged; or
b) petitioning the court if you can show by clear and convincing evidence that you do not pose a threat to the safety of the public or yourself.
This is certainly something my firm can help you with. Feel free to call us for a free consultation at (503) 592-0606.
We handle expungements all the time, throughout the State of Oregon. You are welcome to contact our office for a free and confidential evaluation of your eligibility for expungement of your conviction. We publish information about expungement online at www.expunge.org