Subsonic ammunitions are ammunitions designed to operate at velocities below the speed of sound, which at standard conditions is 340.29 m/s (1,116.4 ft/s) or Mach 1. This avoids the supersonic shockwave or "crack" of a supersonic bullet, which, particularly for suppressed firearms, influences the loudness of the shot.

*NO CRACK* When you shoot subsonic ammo, you won't hear the same crack as you do with supersonic ammo. This is because a subsonic bullet is traveling slower than the speed of sound. As a result, it does not break the sound barrier, so it won't make that distinctive crack.

Subsonic ammunition is designed to travel down range below the speed of sound, unlike standard or higher pressure loads that are made to deliver greater velocities. That typically means the bullet travels under 1100 feet per second.

CCI Subsonic . 22 LR. A great round for hunting that offers supreme accuracy, the CCI Subsonic . 22 LR features a 40-grain hollowpoint bullet that's extremely lethal on small game.

Well first of all I think we should I don't even know why we're talking about it here I think we should be at the range talking about this and actually shooting it you know what stay tuned for that

Disadvantages of Subsonic Ammo The downside of most subsonic ammunition is a limited effective range while hunting. For most hunting scenarios with subsonic loads, this is a moot point as those types of animals such as bear, deer and hogs are hunted at close range.

Subsonic missile are considerably smaller compared to hypersonic missiles. So a subsonic missile can be launched easily from a ship, aircraft, or helicopter.; while a supersonic missile requires a large platform such as a bomber or a cruiser.

Subsonic cartridges do produce less noise than full-velocity rounds, but there's no free lunch - as usual. Your rifle will still go bang, and none of this quieter ammo is powerful enough for hunting big game much past slingshot range. Still, subsonic ammo does fill an important niche for many hunters and shooters.

Variants. The variety of . 22 LR loads are often divided into four distinct categories, based on nominal velocity: Subsonic-velocity: which also includes "target" or "match" loads, at nominal speeds below 1,100 feet per second (340 m/s). Standard-velocity: 1,120–1,135 feet per second (341–346 m/s)

22 LR has ample energy to penetrate the human skull and has had military application in WWII and Vietnam primarily in covert assassination by close range PBI (17).

Due to their lower velocity, subsonic rounds also generate reduced recoil allowing shooters to get back on target faster. This is particularly important when shooting timed events such as Rapid Fire Pistol and practical shooting disciplines.

Subsonic cartridges do produce less noise than full-velocity rounds, but there's no free lunch - as usual. Your rifle will still go bang, and none of this quieter ammo is powerful enough for hunting big game much past slingshot range. Still, subsonic ammo does fill an important niche for many hunters and shooters.

Subsonic cruise missile flies at a speed lesser than that of sound. It travels at a speed of around 0.8 Mach. The well-known subsonic missile is the American Tomahawk cruise missile. Some other examples are Harpoon of USA and Exocet of France.

Subsonic cartridges do produce less noise than full-velocity rounds, but there's no free lunch - as usual. Your rifle will still go bang, and none of this quieter ammo is powerful enough for hunting big game much past slingshot range. Still, subsonic ammo does fill an important niche for many hunters and shooters.

Subsonics For Hunting It's important to understand their limitations and that they generally are going to be less effective than higher velocity loads. Velocity plays a huge part in the damage that a rifle inflicts, and at subsonic velocity, cartridges just don't pack the same punch.

A standard . 22 LR load delivers around 1200 fps and 140 foot-pounds of energy at the muzzle. The typical subsonic . 22 LR offers around 1050 and 100, respectively, a negligible difference to any rabbit.