Depends on the specific conviction.
No
Depends specifically on what the misdemeanor is. Most will not prohibit you from owning or purchasing a firearm. Some will. For example, any domestic violence conviction will do it.
upon application to purchase a firearm a NCIC check is conducted, at which time the out of state conviction will show and your firearm application denied
I'm not sure specifically about South Carolina, but if the conviction was some sort of felony, federal law prohibits you from purchasing a firearm.
If you have a Domestic Violence conviction on your record, the Brady Act would prohibit you from possession of a firearm. You would therefore not be able to become a Police Officer as a firearm is required.
Yes. A felony conviction is not like a traffic ticket - it doesn't go away with time, but rather, stays with you for life.
Yes, they most certainly can. There are laws in every state (plus Federal law) which prohibit a convicted felon from ever possessing a firearm. The penalites are VERY harsh.
If it's a felony conviction, no.
Any felony conviction or domestic violence conviction disqualifies that person from ever touching a firearm.
Assuming that bcd is Bad Conduct Discharge, the answer is Maybe. A Bad Conduct Discharge ALONE does not prohibit possession of a firearm. Federal law (18 US Code 922) lists the conditions that WILL prohibit possessing a gun. Discharge from the military under Dishonorable conditions is one. However, a BCD is not a Dishonorable Discharge- it is a Discharge under other than Honorable conditions. HOWEVER- if the BCD resulted from a court martial finding of guilt, AND it was for a felony (punishable by a year or more in prison), then the CONVICTION will prohibit possessing a firearm.
If it's a felony conviction, no.
Never