Silencers are only effective if you you use low velocity (sub-sonic)
ammunition. If you use normal high velocity rounds, the silencer will
reduce the sound level of the muzzle blast, but will do nothing to
reduce the noise from the projectile breaking the sound barrier. The
average muzzle velocity of a .22 Mag is around 580 metres/second (1.7
times the speed of sound). The most common calibre weapons that would
be used for feral animal control would be the likes of .270 and .308
Winchester, which scoot along a fair bit quicker than the .22 Mag and
have much larger projectiles. The larger and faster the object
breaking the "sound barrier" the more noise.
I don't know who came up with the idea of silencers for hunting long-
arms, but I think they have been watching too many spy movies.
Carl Clifford
On 26/02/2013, at 9:47 AM, Bill Stent wrote:
I'm not a shooter, but I have fired a .22 magnum with a suppressor in
Norway, where they're compulsory within some distance of
accommodation. Can't say it was much quieter than the normal sound,
to be honest.
Bill
On Tue, Feb 26, 2013 at 9:13 AM, Carl Clifford
<> wrote:
NSW's doughty little nimrods are worried that the sound of gunfire
in National Parks will disturb other users. So concerned, that they
now want to be able to use silencers on their firearms. http://www.smh.com.au/nsw/hunters-have-silencers-in-sights-20130225-2f238.html
Aren't they kind.
Carl Clifford
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