A mate is restoring an M10 tank , he is having dummy heads for the 17 pounder shells made from a plastic / resin material . Question is - Is it legal to buy bullets ? we have loads of spent cases for the 50 cal , could we buy some heads ? Also we need heads for the sten rounds for the crew stens in the turret . Another project requires 7.62 heads , once again have loads of spent cases and links . I have no idea where you may be able to buy bullets , or if its even poss without the right sections on an FAC .