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Rating: 
Summary: Dangerous at any speed
Review: As this book is only supplied for academic purposes you would think that it would actually be written well and include information that would be useful for academic purposes revolving around silencers, unfortunately it supply's nothing of the sort.The information contained is inaccurate to the point of being absurd. Look elsewhere for academic study material on this topic.
Rating: 
Summary: Silencers
Review: How to make a silence
Rating:
Summary: Total Crap
Review: Poorly written with difficult to follow instructions that involve poor techniques and designs. Possession of items described as parts in this book and/or making items described within without first obtaining permission from the Federal and State governments are felony crimes punishable by $10,000+ fines and 10+ years in prison. You can ask the author he spent years in prison himself. There are better books available if the study of this topic interests you.
Rating: 
Summary: Won't silence a .22
Review: When I saw this book (decades ago) in a friend's collection, I was inspired to make my own silencer.
There are 2 components to sound coming from a gun:
1) The muzzle blast
2) The sound of the bullet traveling at super-sonic speeds as it breaks the sound barrier!!!
A 22LR shell exits the muzzle at over 1300 feet per second. Do the math! That translates to 886 Miles Per Hour - well over the sonic barrier (500 to 700 MPH depending on altitude and barometric pressure).
You can suppress the blast, but when you do, you still hear the crack as the bullet breaks the sound barrier.
A few other cartridges that are super-sonic are: 9MM, Super 38, .357, .41Mag and .44 Mag. So how do you totally eliminate any tell-tale sound? Use a lower velocity cartridge.
As a rule of thumb, don't use a revolver; you should use an automatic pistol. The ideal pistol: .380 AUTO.
One other thing to consider. Silencers are illegal. If you are caught you could be shot or embark on an extended vacation at Club Fed.
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