Shooting a suppressor wet - with grease

[WestbayWhisper]

This is my rifle, its a Ruger 77/44 with a 16 baffel reflex suppressor.

Want max suppressed signature. Shooting XTP 300 gr dip-lubed with fast powder. Sounds like a pneumatic staple machine. Have seen reports that one can reduce muzzle signature with up to 30 % by shooting the suppressor wet. Water is said to be best but its not practical while hunting. Second best obviously grease; any experience on this subject? The can isnt removable therefore cleaning is almost impossible, that is space between baffels cant be reached.

 

[Lucky]

There was a page that listed all sorts of substances tested, including piss and pop. I'll look, but silencertests.com probably has direct links.

 

[PercyShelley]

The idea behind shooting the can wet is that the wetting material evaporates, so unless it has some sort of dissolved solid in it, you don't have to clean it out.

It's a similar idea to sweating; some of the heat from the gases get used to evaporate the liquid. Thus, instead of a lot of hot gun gases, you get some lukewarm gun gas and some lukewarm vapors since the heat got taken up in the evaporative process and the phase transition. Since a cooler gas has a lower pressure, you get less noise.

Water would be good because it has such a phenomenally high molar heat capacity, although theoretically ammonia would be even better since its heat capacity is 20% higher IIRC. Since that would be pure ammonia, which is about ten times stronger than janitorial strength, I think we can forgo optimal performance for the sake of our nostrils not igniting!