RE: My equipment.
 

ratchet straps work well. also paint some circles around the bullseye and shoot at them.
"dw"

RE: My equipment.
 

Deerslayer, heres one of "those" ideas. Might be making this into a science project tho, hehehe. Why not go with your dad to work and see if you can compress the target with a bucket from a loader backhoe, then band it? Or maybe there's a press at the shop? One thing you may have to do after compressing the poop out of it is spraying the arrow shafts with silicone or pam so you can get them out again.