This is the best place i could find for this. Not really jet boots, but rather underwater propulsion. Thanks to good ol' Tyler Rogoway at thedrive- http://www.thedrive.com/the-war-zone/4722/yes-navy-seals-actually-have-jet-boots
Noticed they carry pistols with long silencers...Always wondered if silencers enhanced the bullet velocity or accuracy. .. It makes the barrel longer- so wouldn't that increase accuracy? But- doesn't silencing the report mean the bullet has to travel slower, in order to not break the sound barrier? Don't ask where i get this knowledge from...accrued over years from watching too many movies.
A silencer doesn't extend the barrel. It is a tube that the bullet travels through, but it does not engage the bullet (the bullet does not contact the silencer). Its just like shooting down the middle of a pipe. Generally a subsonic bullet is used for maximum effectiveness. With a supersonic cartridge, you'll have a loud "crack" that - even with a silencer - is difficult to muffle. You'll notice that a lot of US silenced guns use 45ACP. That's why - big subsonic round.
Even with subsonic rounds, you still get quite a bit of noise in most guns. A good silencer might reduce the sound by half or even two thirds, but that still leaves quite a bit of noise. Some of it is that is blowback coming from the chamber as the gun cycles. A bolt action .22 rifle (with subsonic rounds) is about as close as you get to real silence, yet even those make enough noise that it is clearly audible for at least 100 yards. I'd guess that in a place with background noise or with a lot of vegetation the sound would be suppressed enough not to alert anyone nearby. I use them just so I can shoot without wearing ear muffs. US law makes it a huge pain in the ass to get them because of the gangster hysteria in the times when the National Firearms Act was passed. Silencers and assassins are a Hollywood thing.
I am sooo lazy. ..but recall England special services using a .45 silenced smg. Remember because the only .45 i'd ever heard of was the Webley in their service...The .45 was all American. But i watch too many movies. Would the longer profile of a silenced pistol at least help with aim, or would the added weight nullify. Would it be a better club, if it ran out of bullets? Also re reading IWO by Wheeler. One account said buddy changed his (large volume- was it - like 40+?) Thompson "clip". Were there any drum fed Tommy's on IWO- read they were a problem if any dirt. A drum fed 45 would be a beast in a pillbox.
No the sight is still on the barrel, behind the silencer. The silencer really doesn't affect anything in practical terms. On a rifle it might affect point of aim at long ranges, so you need to check your zero with and without the silencer. That's only because part of the equation in long range shooting is effectively the 'vibration' of the barrel. Adding a weight on the end affects that, but you'd only notice on a long range shot. It's just a hollow tube with some baffles in it, so it would likely just bend at the first hit if used as a club. In some countries in Europe, Germany I know, shooters are encouraged (and even required in some clubs), to use a silencer. In North America we got swept up in the mob hysteria in the thirties and so now in the US you have to jump through a bunch of hoops to get a special "tax stamp" to buy one. I have silencers for the guns I use most often, but it's cost-prohibitive to equip them all. It's a damned shame because because it's a safety issue, not just hearing loss, but people have been killed at public ranges because the muffs prevented them from hearing the "cease fire" when somebody is stepping out there. View attachment 24742
Can hear them firing down at the gun range on sunday mornings. Rode past there many times, never wandered in. Have seen pics of silencers that look like car oil filters for AR's.