I want to build a bullet trap to reclaim lead. Since I am reclaiming, I don't want a metal "dust maker". I have read of some people making them from rubber mulch. I thought sand would be a good idea. The box of truth found that a 2x6 frame filled with sand will stop anything up to 45/70. One issue- what to make the impact face from? I thought about a rubber mat that would stay together pretty well after being shot through a few times. As long as one was to move the POI on the face, it should last pretty well. The other issue is sand is heavy and will likely poor profusely through the smallest of holes. One design is a box turned sideways. Sand piled inside to catch bullets. It does require digging out your lead. I think a sandbag of sorts may help keep the sand piled up to catch well. One issue- I don't always want to shoot "downward". I would rather shot "man level" when practicing for those scenarios. Any thoughts? Anyone built one that works?