I love AMes PIllow Targets…big 40×40 burlap target bags with deer oneach side in opposing d irections… I fill mine with Shrink wrap.
I used to just stuff i t down in…but found I’d lay out the scraps I’d get (all skids are today wrapped with shrink wrap) and then roll it up and form flat rolls of it and lay them in. Worked a lot better. Lasts for thousands of shots.
Last time I changed out a shot up target, I reused the plastic shrink wrap inside. Even stopped a neighbor’s grand daughter’s Cross bow bolts!