Ballistic Signature with Silencer? - Page 2

Ballistic Signature with Silencer?

This is a discussion on Ballistic Signature with Silencer? within the Defensive Ammunition & Ballistics forums, part of the Defensive Carry Discussions category; The newer suppressors have no contact with the bullet...therefore they do not impart any markings on it. Contact with any baffle results in an unstable ...

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Thread: Ballistic Signature with Silencer?

  1. #16
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    The newer suppressors have no contact with the bullet...therefore they do not impart any markings on it. Contact with any baffle results in an unstable bullet which further results in degraded accuracy. While it is true that a bullet that contacts a wipe will be slowed, it is well documented fact that newer suppressors will actually increase the speed of the bullet, the suppressor in effect acting somewhat like a longer barrel on the bullet.

    When developing loads for my suppressed .300 Whisper, this was noted when previously chronographed subsonic load traveling at an average of 1030 FPS bumped up to an average of 1110-20 FPS. The problem with that speed is that when the gun has been shot and warmed up, the apparent temperature increase of the powder in a new round that isn't shot immediately causes the round to go supersonic...which can be pretty loud when you aren't expecting it. Its also one of the reasons that tactical loads for Police and Military are loaded to 1000 FPS...to give some buffer so that you don't hear the supersonic crack.

    There is alot of misinformation and rumors about suppressors, much of it coming from TV.Also a lot a baloney gleaned from the INTERNET which is completely false.

    Newer designs have no more than 7 baffles at the most, and some of the newest have a single integral baffle that is easier to produce. Having participated in development of suppressors and even making my own registered cans, a bullet that contacted a baffle meant that something was drastically wrong with alignment and needed prompt attention. The obsolete designs that use wipes must be changed after as little as 25-30 shots before they lose much of their effectiveness.
    I would rather stand against the cannons of the wicked than against the prayers of the righteous.


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  2. #17
    Ex Member Array Travis Morgan's Avatar
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    Hotguns,

    Not trying to call BS on your post, but would like you to clarify:

    You say that suppressors INCREASE bullet velocity, and that "tactical" ammo is loaded to 1,000 fps. The supersonic "crack" occurs at 1,000 fps. Why would you use supersonic ammo with a suppressor? It's know to ruin them when you use supersonic ammo. Also, WHAT calibers are you referring to that are loaded to 1,000 fps?

  3. #18
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    Quote Originally Posted by Travis Morgan View Post
    Hotguns,

    Not trying to call BS on your post, but would like you to clarify:

    You say that suppressors INCREASE bullet velocity, and that "tactical" ammo is loaded to 1,000 fps. The supersonic "crack" occurs at 1,000 fps. Why would you use supersonic ammo with a suppressor? It's know to ruin them when you use supersonic ammo. Also, WHAT calibers are you referring to that are loaded to 1,000 fps?
    Travis, since HotGuns hasn't gotten back to you I will take a stab at answering your questions. First, there are two posts from HotGuns that mention velocity. The first one says: "Silences in fact do increase the speed of the bullet on occasion and its pretty well documented."
    He did not include the "on occasion" in his second post, but did mention the reason this happens. The suppressor increases the barrel length. If the barrel was 16" long, but the barrel needed to be longer than that to get optimum speed from the powder used in a particular round.

    At sea level the speed of sound is approximately 1087 fps. If the round is loaded to produce 1000 fps speed from the weapon and a suppressor is installed that leaves a margin that the speed could increase without causing the crack. Therefore the rounds are being loaded to be subsonic so as to be quieter in the first place and even if the suppressor is added and the speed increases it will not increase to supersonic speed and will be well suppressed.

    Self-Defense TV on the Outdoor Channel had a demonstration of the suppression of a subsonic versus a supersonic round on the program on Wednesday.
    George

    Two things are infinite: the universe and human stupidity; and I'm not sure about the universe. Albert Einstein

  4. #19
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    Thats pretty much it. DrCMG explained it well.

    Supersonic crack is more closer to around 1100 FPS and up depending on where you are at. When rifles get hot and bullets warm up due to sitting in a hot chamber it will increase the speed of the bullet. Therefore another reason to download.

    The msot common suppressed loads are .22, 9mm,45 acp,.223 and .308 with the 45 acp already being subsonic.

    Why would you use supersonic ammo with a suppressor? It's know to ruin them when you use supersonic ammo.
    Only if its old technology.

    The newer suppressors can be shot all day long with supersonic ammo and in fact are being shot everyday in Iraq with standard ball ammo.

    Suppressor technology has come a long long way even in the last 10 years.
    I would rather stand against the cannons of the wicked than against the prayers of the righteous.


    AR. CHL Instr. 07/02 FFL
    Like custom guns and stuff? Check this out...
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