For my archery target I use bales of wood shavings. $8 bucks at UFA a bale. Then I flatten a bunch of heavy cardboard boxes until you get a stack about 4" thick the same size as the bale.
Next I got a bunch of old floor mats from trucks [the heavy rubber ones] 6 or 7 and duct taped them to the front of the bale. Then I duct taped the cardboard stack over the floor mats. Even with all that.. a few shots in the same location and you start to bury your arrows so you have to move your aim point frequently, even with my compound bow. I tried the small square straw bales but went completely through.
One of these days I will break down and buy a real archery target