I guess if a person were to pack the tin with pea gravel, a few dabs of super glue and hang them however is preferred that's a cheap target. Might try it soon.
1/4 or 3/8 all thread rod 10 ft stick is 10-15$, somewhat bendable for hangers. A person could get wood "sammy screws" that rod threads into ... unlimited
I keep saving my most of my empty pellet tins. I use a few of them for lubing my slug cores. But in general they sit stacked on a couple of shelves. I had a “Brilliant” idea for a safe exploding target, but it wasn’t fully thought out and fizzled



. Here’s one shelf with the last few months of empties - seems a shame to waste them. These are mostly the AEA tins. We should have an empty tin challenge.
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another more serious thought. Screw the bottoms to a board, fill it with something like a lead sheet or steel plate, and only have to change the top portion when it gets too chewed up to use.