Anyone know where I could get my hands on a breakdown of relative ballistics for typical civil war era guns? I need to do a comparison to pre civil war era arms. My club is in turmoil over a number of subjects. The argument I'm focusing on at the moment is whether the steel plates we use for earlier bp guns would stand up to cartridge fired bp guns. Some of our members would like to expand our era to open up for new members. The argument is that our targets and back stops would need to be completely re-done making it too costly an option. I don't believe this is true but need some hard evidence. Thanks.