Varminter;
Hmmmm "silencers" AND suppressors. Must not be a science project. <G>
While you will probably get some info from members of this TFL I suggest you buy the books. When you finish with them you can send them to the "Gunnery Sergeant Schmidbauer Living Library." The Library is considered living cause it is still growing and well... as they said in "The Holy Grail" I AIN'T DEAD YET! All contributions are not tax deductable.
Now. If you send ME an e-mail with the info/questions you have I'll try and answer them.
If you want to know how they work that is easy... think of a car muffler only straight.
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Schmit, GySgt, USMC(Ret)
NRA Life, Lodge 1201-UOSSS
"Si vis Pacem Para Bellum"