My partner at my shop used to be a gunshop owner,he says he thinks I can do this,but he wasn't positive.I want to build a magazine fed .22 bolt action target pistol.Obviously,the easiest way to do this would be to start with a bolt action rifle action.Now..Can I register a rifle as a pistol,then do the conversion? I'll know the configuration up front,barrel length,caliber,ETC. to register it...OR..What if I started with a rifle action,and put my own serial # on it,and treated it as a gun I built? I know about not being able to sell or transfer it already if I roll my own..I'm looking at building something like an XP-100 style pistol in .22 LR with a 10" barrel.