![]() The digital sampling rate of 48,000 Hz (or lower) is also no good for testing of very short duration gunshot impulse/peak noise levels. ![]() The significant problem here for anyone wanting to undertake credible sound level tests on firearms is that most of the hand-held commodity-grade meters used for domestic or commercial acoustic measurements only go up to about 130dB, and the response rate (or ‘rise time’) is far too slow at 0.1 millisecond (100µs), or slower. For digital meters the sampling rate of the meter/processor must also be 196,000 Hz (196 kHz), or greater. The sound level meter – and the special pressure microphone used – must be capable of reading up to about 172dB SPL for centrefire firearms, or up to 196dB SPL for explosives or fireworks. One of the main requirements for the sound level meter is that it must be able to capture and hold peak sound level impulses with a response time (or ‘rise time’) of 20 microseconds or less. This standard has very precise requirements for the sound level meters and associated equipment (microphones and cables, calibration equipment, etc.) to be used, as well as the placement location of the special microphones in order to capture readings from standard reference positions. Of Defence) has for decades been the guiding standard/document used by most of the international firearms community for testing protocols in relation to sound pressure levels of hand held and shoulder-mounted firearms. With the common use of ‘smart-phones’ now, or other cheap hand-held sound level meters, these are two of the most common sources of misinformation in relation to gunshot SPL testing. Even a lot of laboratories or professional audiologists in this country don’t have the sound testing equipment required to accurately measure gunshot peak SPL’s, so as a result you often get tests done with substandard equipment which generate inaccurate – and in some cases grossly misleading – sound level readings which are then disseminated (often online, but sometimes in published magazines) to others who may also be misled into believing this false data. Accurately measuring and capturing readings for these peak sound levels (at extremely high levels, and especially over 160 decibels) has for decades been out of the reach of the average firearms reviewer/writer, or enthusiastic firearms owner who just wants to know how quiet his silencer/suppressor really is. Testing of firearms suppressors (for sound levels) has always been difficult to undertake due to the very short duration of the peak sound-pressure level (SPL) curve of the gunshot blast. A Stalon silencer is easy to install and matches almost any weapon.Any product that goes through the stages of design, development and manufacturing must also be subject to some degree of testing to ensure that it is not only safe, but that it works effectively at it’s intended task. All of this creates a well-planned, developed, and perfectly balanced product. ![]() The matte black surface reduces reflections which is beneficial in bright sunlight as well as in darker circumstances. A Stalon silencer decreases recoil, barrel flip and improves precision when firing a bullet. Silencers for rifles are not only used for personal improvements but also to protect their dogs and surrounding as well. The suppressed bang and the reduced recoil make you calmer and by that, the silencer contributes to increased accuracy. And makes you a safer and more confident shooter. ![]() A silencer improves hunting and shooting in several steps. The benefits of silencers for hunting guns don’t stop at a lower decibel level. The sound won’t disappear and can still be heard in a distance, but it removes the dangerous sound levels that damage the ear and cut the noise to a more comfortable level. A silencer can reduce noise by scores of percent. A regular big game fires a shot of almost 167 decibels (according to MIL-STD-1474D), which is way above the limit of what is harmful to the hearing - for both the hunter and the surrounding. The correct answer is that moderators reduce the noise of muzzle blasts on fired hunting guns, but unfortunately not the noise from the bullet boom and the bullet impact. But the misunderstanding about what silencers on hunting guns means is, unfortunately, big - most people believe that silencers create complete quietness. A considerable amount of these are hunters whose hearing has been damaged due to high decibel levels in conjunction with firing a shot from a gun. Ten percent of the Swedish population has some sort of hearing loss.
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