To keep the speed under the limit, we have to increase bullet Almost all 9mmĪmmunition will exceed the speed of sound-or be so close on theirĪverage that one or two in each magazine will be over the speed limit. When we get to 9mm, things get interesting. You want ultra-quiet AOs, you can't go 165 grains or lighter. Lighter bullets, however, will often exceed the speed of sound, and if You can select from will commonly be around 900 to 950 fps at most. For instance, the shelves full of 180-grain FMJs Similarly, the normal 180-grain ammunition in most. Used them when it comes time to clean your suppressor.) (Suppressors hate cast bullets, and you will hate having You can even load your own, provided you don't useĬast bullets. Much pick any of them and have subsonic ammunition without having to payĮxtra for it. 45 ACP, forĮxample, has only a few loads that exceed 1,116 fps, so you can pretty At standard atmosphericĬonditions, the speed of sound is 1,116 fps, and because any singleīatch of ammo is going to vary somewhat in velocity, most subsonic stuff Modern add-on suppressors do not decrease bullet velocity, whichīrings us back to subsonic ammunition. It is released into the baffles, and for the most part the gas no longer Once the bullet leaves the muzzle, the gas propelling Muzzle of your handgun, and the clearance hole down the center of theīaffles is larger than the diameter of the bullet so the bullet does not Tubes with internal partitions called baffles. That, let's look at how a suppressor works. So it's quiet, but how does it perform? Before we get into The speed of sound, so the supersonic "crack" (which a To make a suppressor as quiet as possible, you need to useĪmmunition known as subsonic. Gun club (the suppressors, not the supermodels). Here and they are hot, and you're going to be seeing them at the Supermodels, not all agree about liking or disliking them. Noticed that suppressors are the hot new thing. IF YOU HAVEN'T BEEN PAYING ATTENTION, you might not have
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