Gurps SOE Weapons?

[Anthony]

Originally Posted by The Colonel

As to the Welrod having the reputation of the quietest firearm ever made - I'd not heard that, but again, it may be so. Personally I suspect some of the modern captive bolt cartridges must be quieter, but who knows.

It was certainly a very quiet gun, but it does also have the benefit of being something a collector or historian has a reasonable chance of getting real numbers for. I would assume there's been some improvements in silencers in the last 75 years, though that might be used to permit a more powerful bullet at the same noise level rather than reducing bullet noise.