I tried and experiment about 20 years ago that I still like to use better than anything else for shooting long range shooting when it's too far away to hear the hit, you take a sheet of sheetrock and cut it up into squares about the size of your steels (or smaller if that's your target size) and tape it on, makes a nice big puff of white smoke you can see for a long ways away, also lets you know what way the wind is blowing out there but REMEMBER, you need the steel plate behind, hanging a plane piece of sheetrock up won't do it. I usually have about 20 "steels" I keep on hand just for this, when a couple get too "raggedy" I make a few more.Only way I know if I hit something that far is if it is tannerite lol