I am building a target out of burlap seed bag and plastic grocery bags. It is 80% done and I have shot at it from 20 yards. The arrow stops quite well (doesn't go through) and so far the burlap hasn't been cut. I am going to stuff more sacks into it for a final product. By the way, the "Infinity Target" is stuffed with chopped up sleeping bags (?) and costs about 40 bucks. I have been shooting at it for about 3 months now and I really like it. I shoot between 60 nd 100 arrows a day, you do the math. It seems to be durable enough and after you think your wear is about done you can replace the cover for about 15 bucks.
My hunting buddy made a target from shrink wrap stuffed in a burlap seed bag he got from Home Depot dumpster (shrink wrap). I was impressed! It stopped his carbons with broad points and seemed to self heal (stuffing) but the burlap kinda got cut up. But the seed sack was free from our local ranch seed supplier. We are looking into the McKenizies for 3D's as we have lots of outdoor property to go shooting in. Gonna leave 'em out in the field until hunting season as we go shooting together every week. Same goes for our home mades. Good luck hope this helps.