I'm hoping some of the veteran shooters can help me make sense of what I've observed. Being a fairly new to shooting ranges, clubs and guns in general, I've noticed some subtle, but interesting cultural differences regarding paper targets. Most public indoor ranges sell targets. Some have all manner of targets, including zombies, osama bin laden, humanoid silhouettes, to simple grid targets. I've visited and read rules from a few places that strictly prohibit use of humanoid targets. Most of these are less public - either private member only places, or limited public use. I'm neutral either way, and actually prefer a grid for sighting in or other serious practice. Is there something to this rule, or not?