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). Oh, and you can't let your wife/kid use it without being in violation of the NFA unless you have it owned by a trust where the family memebers are trustees.Technically, match / standard velocity type ammo is subsonic as it's below the speed of sound from muzzle to target. 22 suppressor there is something like $40NZ, here you're looking at $4-600, a $200 tax stamp, and a 6month wait for the BATFE to do a background check that the FBI does in less than a week. I really wish that there was no NFA and we could buy suppressors like some countries (New Zealand comes to mind). I personally have fired rather large rifles without ear protection, and its generally not real pleasant. You can generally avoid most ear protection shooting suppressed, even with supersonic ammo (you won't be in the shockwave so no need to worry about it). And it does make shooting much more pleasant. Of these bits of the gunshot, only 1) can be addressed with a suppressor. Imagine dropping a large boneless beef roast on a tile floor from a few meters up. A rifle bullet impacting flesh is a very loud slap. This is louder than you'd expect.Ĥ) the bullet's impact - very much louder than you'd expect. Can be avoided by using subsonic cartridges/loadings.ģ) the weapons action - at the very least the firing pin's impact on the primer. These would most likely get you subsonic velocities.Īnother thing to consider when shooting a pistol vs a rifle and comparing sound signatures is that a pistol will eject more unburnt powder into the air around the muzzle as its had less barrel length to burn said powder.Īs far as suppression goes, there are four main components of the sound signature of a gunshot:ġ) muzzle blast - the expansion of deflagrating powder in the atmosphere as it exits the barrel.Ģ) sonic crack - the bullet creating a shockwave through the air. Now, you could use one of the other rimfire variations (.22 Short. A pistol (assuming a 6" bbl) is really close to supersonic, if not a bit over. 22 Long Rifle is generally loaded supersonic from the test fixtures, even in the standard loadings.
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