The locations is a wide open field with a mountain/forest backdrop. The microphones were placed 1050 Feet (ft) 320.04 Meters (m) 350 Yards (yd) away from the shot position. The bullet has slowed a bit by the time it passes the microphone. Keep in mind that the feet per second calculation is from the muzzle, not down range. 308 Win 200gr traveling at approximately 1040fps. 308 Win 180gr traveling at approximately 2570fps. I love it when that happens!īelow is a audio demonstration of supersonic and subsonic bullets shot from a Remington 700 Rifle with a Gemtech (Caliber: 7.62mm NATO /. I was able to acquire some final material that will be in the new library. The first two were just for testing and scouting the various locations on this massive piece of North Idaho real estate that I call my second home. I have ventured out to my favorite recording location on three occasions in the last month.
Subsonic speed zip#
Since I’m diving into unknown territory with these higher calibers and longer distances I’m basically just going out into the field and making a somewhat educated guess as to how and where to record these little slugs of metal as they zip and bounce by the microphones. To get the perfect bullet pass by or ricochet you have to calculate speed of sound, bullet velocity, grain size, powder loads and weapon type. Creative Sound Design, LLC accepts no liability for the consequences of any actions taken on the basis of the information provided in this blog post. This blog post is for educational purposes only. We used 2-way radios to communicate and I was notified before each shot that one was “Coming down range” and after the shot “All clear” We were in an area where we could safely record these knowing that when a bullet ricochet sent the bullet off into the distance that there was ample room for the bullet to land without endangering any person or property. I was protected and at a safe distance at all times. Because of the distance we were shooting I was downrange in the area where the bullets were impacting and passing by. This type of sound recording is not for the faint of heart. This recording adventure is not easy and I will say it’s been one heck of a learning curve.ĭo NOT try this at home. This time I’m going with larger calibers and shooting longer distances.
Subsonic speed professional#
After a year and a half of studying ammunition ballistics and acquiring all kinds of high speed and sub sonic ammunition, the recording of the second installment of Bullets HD Professional SFX library is underway.
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