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Traditional measures of suppressor noise reduction have focused on the change in the peak sound pressure level between suppressed and unsuppressed conditions. Because of the MIL-STD 1474D, the ability to reduce the suppressed level to below 140 dB peak sound pressure level (dB pSPL) was the goal for firearm suppressor manufacturers.
Combined with firearm sound suppressors, subsonic ammunition may significantly reduce sound levels compared to normal ammunition. [4] Specific reductions depend on the ammunition and suppressor. The peak sound pressure levels of a Remington 700 .223 caliber bolt-action rifle firing high-velocity (supersonic) ammunition using a GEMTECH G5-5.56 ...
The decibel rating level is 25dB. The Wind Talker can be mounted to any rifle with either a 7.62 mm or 5.56mm bore diameter as long as it utilizes a Vortex flash hider. The Wind Talker sound suppressor is in the military inventory system as NATO Stock Number: NSN 1005-LLL-997965, utilizing the same NSN number as the M14DC which it replaced. [1] [5]
The suppressor was the M14SS-1, designed for the M14 rifle, and forty suppressors were sent unofficially to the 9th Infantry Division in Vietnam during early 1969 for combat evaluation, and an undisclosed number were procured under ENSURE Number 360.1, but the suppressor was not adopted officially.
Firearms fitted with SilencerCo suppressors. Sparrow 22, which is compatible with multiple calibers up to 5.7×28mm and rated for full-auto fire. Warlock 22, a .22 LR silencer that weighs 3.0 oz and reduces sound to 114.6 dB. Spectre 22, which handles a range of ammunition from .22 LR to 5.7×28mm.
Sound exposure level (SEL) is a logarithmic measure of the sound exposure of a sound relative to a reference value. Sound exposure level, denoted L E and measured in dB , is defined by [ 1 ]
1 dB = 1 / 20 ln 10 is the decibel. The commonly used reference sound power in air is [11] = . The proper notations for sound power level using this reference are L W/(1 pW) or L W (re 1 pW), but the suffix notations dB SWL, dB(SWL), dBSWL, or dB SWL are very common, even if they are not accepted by the SI. [12]
This due to the requirements of US commercial customers who must procure a different Bureau of Alcohol, Tobacco, Firearms and Explosives tax stamp for each silencer they own. [5] Their first silencer was the Sandman series. [3] In 2018 Dead Air introduced Key-Mo, an adaptor which allows the use of Silencerco silencers with Dead Air muzzle ...