We're fooling around with some NRL22 style shooting at an indoor 50' bullseye range. There are dividers between the lanes, so we can use a rope sling, angled lumber to simulate a tank trap, various buckets and sawhorses, just can't get the rooftop in there. Target size for 50' is a problem. Can't use anything metal, so I cut up some of the orange polymer prairie dog targets that are "self healing" (they are indeed) and hung them by drilling a hole using a ziptie to hang from a wide rubber strap. That way they don't spin and come back into position quickly. I've cut them as small triangles so the hole is at the top hopeing that people tend to aim for the larger area at the bottom, and not shooting off the ziptie hanger. Tried some A-36 bullseye targets prone with bipod, would score as a hit only if the tiny center dot was taken out. but some scopes with the FFP floating center dot won't focus down to 50' and tough to see dot against black bullseye. Anybody have some target suggestions to use indoors, or are you all still shooting outdoors in the snow?