Hay Bales?

[sentinel]

I just built this target using straw bales with 2x10's and all thread to compress them. Initially the left side all thread started to turn as I tightend the nut hence the angle of the upper 2x10. I added an extra nut to the bottom of each all thread to prevent them from turning as I torqued to upper 2x10. So far no pass through's though I've had a several arrows penetrate up the fletching so I'll be hanging some carpet on the back just to be safe.