RE: Material needed for bag target?
I use my wife' s beater sewing machine and sew up the fiber lumber wrappers you can get off the bundles at a local lumber yard. I sew them into 24" x24" pillows. I then stuff them with shrink wrap. Shrink wrap is used to wrap pallets of boxes when shipping them. It' s a heavy duty Seran Wrap. Any freight outfit should have PILES of old used shrink wrap. I own a harware and building materials store so I have an abundance of both.