I don't want to jack the thread, but I've been wondering about a similar setup, only at an outdoor range. With the plates hanging the plates from some quality heavy chains, wouldn't it be much harder to get ricochet when the plates swing back upon impact?
"Freedom and reason make us men; take these away, what are we then?"
-Sometimes your best defense is a good reminder of your common sense-
Springfield Loaded 1911 - HK USP Compact 9mm - SA XDM 4.5 .45 - Browning Medalist .22 - Ruger 10/22 - Browning Superposed O/U - Remington 1100 - Remington 720 .270