This is far too complicated for a simple answer for several reasons.The range of potential charges that could be brought is most circumstances is huge.So are the potential sentences that could be imposed as the ranges for most crimes is very broad.These things depend onwho eventually will bring the charges -- the state and/or the federal governmentthe types of firearm -- firearms such as a sawed off shotgun or automatic rifles  often carry far stiffer penaltieshow many firearms were involvedwhere and how the firearms were obtained such as legally or stolen, in-state or out, with proper ID or false ID, after a waiting period or not, etc.whether the firearms were registered whether they were being illegally transportedwho they were going towhether you or those involved with you have any criminal convictions and/or were under any restrictions as to ownershipwhere you were stopped, such as near a school or in the woodsetc. etc.