Supersonic bullet still makes a crack. When you fire subsonic you can get just the sound of the metal bits hitting each other.
Whoever is interested look up what an MP5S with subsonic ammo in a firing range sounds like (the S is important in this search)
It’s still louder than just the bolt cycling; you’re hearing the gas escaping at high speed, but subsonic ammunition through a silencer is definitely significantly quieter than supersonic ammunition. One of the very, very few positive things about .45 AARP is that it’s always subsonic, so it’s easy to get it very quiet, as long as you have the slide locked so that it doesn’t cycle. (IIRC Knights Armament Corp made a .45 for SOF that had a locking slide.) Videos aren’t great for hearing what a silenced firearm really sounds like due to the way that most microphones compress sound; they end up sounding very different IRL.
I’ve been at the range when some other people were testing out a night-fighter rig with .300 AAC and a silencer; it sounded like they were shooting a .22.
I’d love to get a silencer for my Ruger Mk. IV, because that’s one that will get very, very quiet with subsonic ammunition. I also want to get a silencer for my AR-15, mostly because that sharply reduces the amount of smoke you have to deal with at night matches.
Supersonic bullet still makes a crack. When you fire subsonic you can get just the sound of the metal bits hitting each other. Whoever is interested look up what an MP5S with subsonic ammo in a firing range sounds like (the S is important in this search)
It’s still louder than just the bolt cycling; you’re hearing the gas escaping at high speed, but subsonic ammunition through a silencer is definitely significantly quieter than supersonic ammunition. One of the very, very few positive things about .45 AARP is that it’s always subsonic, so it’s easy to get it very quiet, as long as you have the slide locked so that it doesn’t cycle. (IIRC Knights Armament Corp made a .45 for SOF that had a locking slide.) Videos aren’t great for hearing what a silenced firearm really sounds like due to the way that most microphones compress sound; they end up sounding very different IRL.
I’ve been at the range when some other people were testing out a night-fighter rig with .300 AAC and a silencer; it sounded like they were shooting a .22.
I’d love to get a silencer for my Ruger Mk. IV, because that’s one that will get very, very quiet with subsonic ammunition. I also want to get a silencer for my AR-15, mostly because that sharply reduces the amount of smoke you have to deal with at night matches.