Guys looking for a good,durable practice bag to hang in their garage or basement, check out the Pro Stop Magnum.
I put this bag in my shop 1995 for my customers to try out the custom bows I handled. I use this bag religiously for my form and warming up prior to my bow hunts. All I do is jump on the bag to get the inside tight and flat. I had to repair the back with a heavy "belt" from a local rock quarry so the arrows won't pass through.
The front may be worn out but again, jump on it to tighten up the insides. Can't say I didn't get my moneys worth out of the bag and still going strong. I used 2 large eye bolts and heavy bungee cords to hang it. I can shoot 7 yds in my shop and like I stated, great for form and warming up.
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Looks like you've been using a shotgun on it!
I have one just like it and am 10 years into it!