Suppressing a shotgun

[CountryBoy19]

It's possible to suppress almost anything, if you want to build a big enough can. The bank robbery in "Thunderbolt and Lightfoot" was loosely based on a real-life case that happened in Canada, where the robbers blasted into a bank vault with a suppressed 20mm anti-aircraft cannon. I believe the suppressor was made from a 30 gallon oil drum.

While true, shotguns are an entirely different story. You can't just make a standard baffled suppressor like those used with rifles/pistols. The shot and wad would expand after leaving the muzzle and you'd end up with a baffle strike. The op was asking about suppressing shotgun; he didn't say anything about the size of gun to suppress; it's the "TYPE" of gun that is critical in this discussion.

It's more or less the equivalent of the water tank that a ballistics lab would use for projectile recovery and testing.

Actually it's not. It doesn't recover the projectile in any way.

It is a tank suppressor (exactly as the poster above you stated). IIRC It's located in Germany on a tank/artillery testing range where the city has sprawled out and as a result many people began complaining about the noise generated by the big guns they were testing. They complied and built that bit suppressor to help with the noise of the tanks.

 

[pharmboy]

I stand corrected.