Posted: 10/16/2020 1:20:49 AM EDT
Old hot tub covers are large and will work for this use, if the bow or crossbow does not have too much penetration.
On the other hand, they can be used to make redneck kayaks and trolling motor boats.
[Last Edit: 11/15/2020 10:02:11 PM EDT by JW]
The archery shop where I used to shoot had fine netting loosely draped above and behind the backstop ....worked very well .