Sadly what sound like good logic on the board could have you in deep trouble with the law. In Ohio you can not have a loaded gun in the RV unless you have a carry permit and that only covers loaded handguns. A loaded magazine is a loaded gun weather it's for a pistol or long gun. En-blocs and stripper clips are not loaded guns under Ohio law. Confused yet? And that's just one state.
To answer your first question, yes your plan of a take-down rifle with a loaded magazine would be a major problem in Ohio.
Change you can believe in... Pre-65 US silver coins
NRA RSO & Certified Instructor in rifle, pistol, shotgun.
An unloaded pistol is a paperweight.
Opportunity knocks..Trouble kicks down the door.