01-30-2012, 06:06 AM
Schwag173 Wrote:While I've heard that 7.62 cans work OK, I tend to think that closer is better.Actually it makes a good deal less difference than you'd think soundwise... Example: http://www.silencerforum.com/forum/showt...(16-quot-)
Mainly if you use a larger caliber can (which is generaly larger overall as well) you trade size for less back pressure.
As a loose generalization (which I'm sure someone will argue with) the tighter aperture will only net you about 1-2 decibels at the expense of increased back pressure and action filth.