I am looking to build a bullet trap for inside my shop. Mostly .22 and someday soon suppressed handgun. I just want a simple plining spot for now, kind of a learning curve as I hope to build a bigger shop with a dedicated shooting lane someday. Internet lawyers and global warming lead farmers please opt out. But does anybody have pics of there trap/backstop? I looked into ballestic blocks until I saw the price. And yes I am in the county, so I can shoot but it is flat ground so outside is kaput... Biggest caliber would "possibly" be subsonic .300blk or maybe .223 if it turns out nice... I have 40' so I figure 10 yard line and 7. Anything helpful would be appreciated, and I am on a budget.