Hope this isnt a silly question - Looking for advice please

We've been down in Tucson at the PIMA air and space museum, and i picked up a dummy 30mm A10 cannon shell as a souvenir.
Just wondering, would you recommend taking it through as hand luggage or risking having checked baggage opened up by TSA etc
Information on the TSA website and virgin's only applies to live ammunition as far as i can see.
Any comments would be appreciated.
Rob
Just wondering, would you recommend taking it through as hand luggage or risking having checked baggage opened up by TSA etc
Information on the TSA website and virgin's only applies to live ammunition as far as i can see.
Any comments would be appreciated.
Rob