One universal truth about any firearm is that it makes noise, and noise can create a bunch of problems. Permanent hearing loss and upset neighbors are two examples. With today’s expanding population, the latter problem continues to grow, so more and more shooting ranges are dealing with noise-complaint issues.
CCI addressed that problem in at least one category with its Quiet-22 ammo. This .22 Long Rifle ammo features a 40-grain bullet fired at a subsonic, 710 fps. The Quiet-22 uses a standard LR case and bullet size, but its powder charge is engineered to produce very low noise. CCI says it’s a 75 percent reduction in noise over conventional ammo.
Sound is measured in units called decibels. Normal conversation is approximately 60 decibels; heavy city traffic is about 85 decibels. A gunshot might be as loud as 170 decibels. Hearing loss occurs when your ears are exposed to continuous noise above 85 decibels or impulse noise (like a gunshot) above 140 decibels. The louder the sound, the more damage it causes.