Steel reactive targets are often either not allowed at most ranges, or have to be all the way downrange, at the backstop.
An alternative is to use thick wood.
The bullets either stop in the wood or pass through to the backstop, assuming the targets are at a suitable height.
Wood works quite well, and eliminates ricochets.
And a whole field full of wooden targets cost next to nothing.
The more there are, the longer they last, too.
Just a thought.