460 end cap on the same suppressor with the same load and it’s much louder. For example, a 200 grain, 10mm subsonic load is very quiet with the correct end cap. An under-pressured subsonic cartridge may sometimes not quiet down well in an over-bored suppressor. 223), and they work great with supersonic loads, but a cartridge must generate enough gas pressure to pressurize the can in order to slow and quiet the gasses down. It’s common to use an over-bored suppressor (think. Another thing to consider is the suppressor itself. A few shots through paper are an easy way to verify stabilization. This can cause a baffle strike, causing serious injury and damage. Subsonic loads typically use heavier bullets that may not stabilize with some slower-twist barrels. The most important, is to verify that your gun is stabilizing the subsonic bullets before shooting them through a suppressor. If you’re dipping your toes into the world of suppressors and subsonics for the first time, there are a few things to be aware of when selecting your gun, cartridge, and suppressor. A bullet traveling below the speed of sound does not make that distinct sonic crack. At speeds above the sound barrier, the bullet itself creates a sonic boom, or in the case of bullets, a high-pitched crack, perceptible all along its flight path. Quite simply, subsonic ammunition is any cartridge that propels its projectile at a velocity that is below the speed of sound-approximately 1100 fps depending on atmospheric conditions and elevation. Here are 10 things everyone should know about subsonics. So the time has come to try and clear up any confusion.

There is plenty of misunderstanding about subsonics, what they do, and how you should use them. I’m referring to ammunition specifically crafted as subsonic, to be paired with rifles outfitted with a suppressor. Hand-in-hand with what could be called the suppressor enlightenment in the United States over the past decade, comes the rise of subsonic ammunition. We may earn revenue from the products available on this page and participate in affiliate programs.

9mm subsonic speed