Homemade Steel Target Help

[HuXXXford]

I ordered a heavy duty steel target online and built a mount using spare 2x4s and $2 sawhorse brackets.

Using the sawhorse legs holding a 2x4 with two holes drilled, I attached the steal target first using zip ties thinking that if they got shot, they would be cheap and easy to replace. These would only last a few hits from a 5.56 before breaking.

Next we tried some heavy duty wire wrapped through the holes a few times. This lasted much longer, but no more than a couple mags.

Does anyone use or have any suggestions of anything else I could use that would be more durable? I hesitate to use chains because I feel like if those get shot they will be expensive to replace.

Thanks in advance for the help.

Hux