Starter pistol would be significantly louder and is pretty cheap to use if you need to do this often. You can get .22 or .32 caliber blanks. Don't bother with the black powder blanks, they are harder to get and cost more. The black powder only helps if you need visual verification of the shot before the noise reaches you (like the timer in a race).
Regards, David Coudron From: AF <af-boun...@af.afmug.com> On Behalf Of ch...@wbmfg.com Sent: Tuesday, March 31, 2020 5:17 PM To: af@af.afmug.com Subject: [AFMUG] OT new project I need to launch a large sound impulse down a pipe. Thinking of a starter pistol. Banging on the side of the pipe is not good enough. Need a loud pop that I can do over and over. Whatever makes the noise need to be small. Not sure if there is a small loudspeaker that could produce an impulse sharp and loud enough. Do they still make cap pistols? Not sure if toy caps would be loud enough or not.
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