o.k. Tim, hey you were working on that bathroom during the New River Valley Shoot........ i did get to practice some today. i've never shot at 30yds before, but i think i did o.k. fired a few spotters to get the distance, found that 13 grains of FFFG goex did the trick. no cleaning between shots, in fact fired the 7 legal rounds in under five minutes. i was using my Confederate mortar that i machined on my poor little lathe. the powder chamber is 5/8 dia, i used no wadding, all the golfballs were Pinnacle practice, and they have had a hard life........... i measured the five best, i don't know in what order they fell. standing 30yds back, it looked like all fell at the stake. when i walked up, i found out different. anyway,here's the list: #1,2". #2, 26 1/8". #3, 39 1/4". #4, 59 3/16". #5, 81 1/2"........ for a total of 208 1/16"................ here's a pic that i took of it, you'll have to be logged in to see it. plus if you double click it, you should be able to zoom the pic.