22 LR fired from a suppressed rifle (138 dB).
#Subsonic speed full#
So how much more quiet is M-22 Subsonic compared to standard long rifle loads? In Winchester testing, M-22 Subsonic measured at 129 dB from an unsuppressed rifle, which is significantly quieter than a full velocity. Virgin Atlantic actually had two of its planes reach Heathrow in under five. The ammunition works equally well in unsuppressed firearms, too, reducing the sound of shots even without a suppressor G-CIVP set a peak ground speed of 825mph (1,327km/h), although its peak airspeed remained subsonic at around Mach 0.85. As temperature changes, so will the sound barrier. In dry air at 20☌ (68☏), the speed of sound is 343mps or 1125ftps.
#Subsonic speed crack#
M-22 Subsonic is ideal for the increasingly popular suppressed firearms, eliminating the audible crack of faster rounds, even when fired through a suppressor, for the ultimate in low-noise shooting. The sound barrier, otherwise known as the sonic barrier, is the sudden increase in aerodynamic drag and other undesirable effects experienced by the projectile as it approaches the speed of sound. In addition, the M-22 Subsonic utilizes non-corrosive priming and clean burning powder for reduced muzzle flash and easier care and cleaning of your firearm. The new round features a 45-grain black-plated lead, round nose bullet that has the equivalent energy of a full velocity 36-grain rimfire product. Winchester continues breaking ground in the rimfire world in 2016 with the introduction of a subsonic. Centerfire performance at rimfire cost is what the 17 Win Super Mag brought to the table. Not all subsonic loads are noted as such in the data, because the cartridge is not capable of producing supersonic velocity. Think the groundbreaking 17 Winchester Super Magnum, introduced just two years ago, that shattered the speed record with a deadly accurate 3,000 fps muzzle velocity. JASSM can cruise with a subsonic speed, and has a range of 370.4km with the ability to reach targets within the range of 926km. Subsonic loads refer to those whose velocity is less than the speed of sound.
The Need For Speed – The New Winchester M-22 Subsonic Winchester Ammunition is one of a few ammo companies still turning out innovations in the realm of rimfire ammunition.
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