Felons know they can keep blackpowder guns. Guy that does landscaping for me has an old barfight felony from the 80s. He keeps a replica Colt Peacemaker in his truck and in winter can carry a variety of blackpowder guns concealed. NFA, GCA, and FOPA does not address antique or blackpowder guns. They are NOT firearms. However, they may be “weapons” in some states.
It is LUDICROUS that this guy is still being punished for that crime by being deprived of his right to have modern firearms.
Laws such as these are tyrannical and morally wrong. Once the felon pays his debt to society, whether it's jail time or a fine or whatever, the CHRISTIAN thing to do is to restore his rights and wish him well.