4/17/2024 0 Comments Cci 22 ammo decibel ratings chart![]() I became curious 20 years ago as to why a 22" barrel was so noisy and a 24" barrel was so quiet with Remington CB Longs. Given the choice, i wouold and do stay with a standard or match velocity in the 700-1050 to help take out most of the variables over longer distances and temperature swings. keep in mind these types are also produced in a more "pump it off the line and out the door" bulk type manufacturing, where even lower grade match ammo gets at least a little more attention to detail and manufactering machinery calibration to at least "pump out" a little better quality product. in other words, if you are using velocitors, mini mags, or just plain ol' HV there shouldn't be all that bad of groups (again depending if your rifle likes them and bullet design) if you are staying within that distance of going transonic. HV really only gets inconsistant if you are shooting it past the point of where it drops out of super sonic speed. but at around 100yards, just about everything starts messing around with rimfire ammo. Humidty - as far as FPS at the muzzle it isn't much of a concern to me, until i start getting out about 100 yards - then the "thicker" air starts to actually start showing up POI differences. the specialty type as mentioned above has it's drawbacks when launched at longer distances, but within 75 yards and depending on if your rifle likes them, work pretty good when trying to be discrete. of course the slower stuff will drop more than HV, but generally be more consistant / accurate at any distance. Over the travel of the bullet, you'll have more stability from muzzle to target as there's no transonic stuff going on over any of the trip there. the trueist of labeling is the aguila with super subsonic designation, which in my opinion is like a generic term that describes CCI quiet, rem cbee, CCI cb both in FPS and sound, getting below 700 fps 10 ft from the muzzle. The truely really slow / quiet stuff should have a specialty type branding on it including the CCI quiet, rem cbee, CCI cb, and the like that have a majorly reduced powder charge, or even no powder at all and relies on the priming agent to propel the bullet. The closest thing i've found that matches up with the print on the box is. IMO a fine example of subsonic gimmic on the box is remington subsonics, through a chrony i've recorded the same FPS 10 feet from muzzle as wolf extra & match, yadda yadda. so anything under that 1080 / 1120ish print on the box is really subsonic as it never goes past the speed of sound (depending on extreme environmentals). His hearing is a bit poorly due to 35 years in the factorys, but yea.Technically, match / standard velocity type ammo is subsonic as it's below the speed of sound from muzzle to target. I had to take aim at the burn barrel and let the bullet go *DOOOOOING* on the drum for him to realize i'd actually shot hahah he was like "are you gonna shoot it yet?" lol first time i brought my can up to visit at the folks and show it off, i dragged dad outside an just shot one into the hill behind the house - purely to demonstrate the noise thing. It would just barely cycle the actions but it wouldn't cycle it every time. I videoed my wife shooting this stuff and the sound of the empty brass hitting the concrete floor was louder than the muzzle blast. Plant.One is spot on, this stuff is crazy quiet, I think my pellet gun is louder. I messed around with shooting some these out in my shop through my Ruger 22/45 Lite and M&P 22 Compact with a couple different rimfire suppressors I have. ![]()
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