Not related t punt guns, but some years back I was at an antique tractor show in Missouri. They were getting ready for a short parade on the grounds. Approximately 100 yards form where my wife & I were sitting in the bleachers was a 1918 Rumbley Oil Pull 30-60. I truly wanted to watch how they started it but had turned to look at something else when it occurred. My wife & I both commented on the feel in our chest when it started, she even said it hurt her heart. this hd a two cylinder engine with as I recall a 10" bore by 12" stroke for 1885 CID. Would pull a 10 bottom plow @ about 2 1/2 MPH.
Jon I can certainly understand you "Feeling" that punt gun go off. The noise of the Rumbley was really quite mild, but you cold feel every one of its 375 RMP strokes in your chest.
