The backstop I have relied upon the most for backyard shooting is a horse stall mat from tractor supply. Hung behind a target, it stops any trad bow field point arrows dead, and only continued punishment from broadheads will do damage to it. I don't think a field point could shoot through it, not likely from a trad bow. It's cheap and amazing. I hung mine with a little give so it takes the energy out of the arrows fast. It doesn't seem to damage my arrows at all either. I picked that tip up here on tradgang but its worth mentioning again.