Yeah, well...(Image removed from quote.)(Image removed from quote.)(Image removed from quote.)Not saying it's not impressive, not saying these "smart bullets" really do what the pics show, just saying...
Making the assumptions that the sniper was using US military M33 ball ammunition with a 647 grain bullet (nearly 42g), and with the average temperature, altitude and humidity data for Baghdad at the beginning of June (30C, 34 metres and 21 per cent humidity, respectively) entered into the calculator, a notional muzzle velocity of 3,000ft per second, and a scope height of an inch and a half over the centre of the bore, we can estimate that a range of 3,750yds – near enough the 3,773yds at which the shot was taken – the sniper had to correct his sights and aim off by more than 12 thousand inches, or 327 arc-minutes of angle, to compensate for the drop of his bullet over such a great distance. The bullet was in the air for 9.7 seconds.In plain English, the sniper had to point his rifle at a spot slightly higher than London’s Shard skyscraper, which measures 310 metres to its tip, in order to hit his mark. None of this takes into account the wind speeds across that distance, which are liable to push the bullet all over the place, or the Coriolis effect, or even the Earth’s curvature.People trying to hit extreme long-range targets for fun on a flat range where nobody's shooting back or liable to do other accuracy-impairing things, like take cover or call in air strikes against you, seriously struggle even with highly customised equipment. Although a team of American enthusiasts managed to shoot a static range target at 4,500yds last year, they were trying to hit a 45" bullseye on an eight foot square board – not a man trying to harm others. They scored just four hits over two days.
Wonder what the longest unconfirmed length is? Some sniper saying did you see that?? Sorry but we can confirm that.
I've often wondered about the 'celebratory' gunfire that is common in some parts of the world. Now when they are on their way back down the velocity will be lower than muzzle velocity. But that's still a heavy object falling at terminal velocity.
Quote from: Smashie on July 04, 2017, 05:31:30 PMI've often wondered about the 'celebratory' gunfire that is common in some parts of the world. Now when they are on their way back down the velocity will be lower than muzzle velocity. But that's still a heavy object falling at terminal velocity.Sadly people are killed as a result of said "celebratory" gun fire. There are gunfire detection systems areas of my city now.When I lived in a certain part of my city we'd hear machine gun fire especially on New Years. It was pretty scary to think those bullets would eventually rain down. I still hear the random shot fired on New Years but not as much as the 80's/90s.
Quote from: Aloha007 on July 05, 2017, 06:46:05 PMQuote from: Smashie on July 04, 2017, 05:31:30 PMI've often wondered about the 'celebratory' gunfire that is common in some parts of the world. Now when they are on their way back down the velocity will be lower than muzzle velocity. But that's still a heavy object falling at terminal velocity.Sadly people are killed as a result of said "celebratory" gun fire. There are gunfire detection systems areas of my city now.When I lived in a certain part of my city we'd hear machine gun fire especially on New Years. It was pretty scary to think those bullets would eventually rain down. I still hear the random shot fired on New Years but not as much as the 80's/90s. As far as I know, such deadly "Celebratory" gunfire would have been on a ballistic trajectory with extra speed, not falling straight down at terminal velocity?
THIS is more impressive:(Image removed from quote.)
Quote from: pfrsantos on July 07, 2017, 12:53:51 PMTHIS is more impressive:(Image removed from quote.) With how many bullets there were in the air at times...The chance of it happening at least once must have been fairly high....
Quote from: Pablo O'Brien on July 07, 2017, 01:11:45 PMQuote from: pfrsantos on July 07, 2017, 12:53:51 PMTHIS is more impressive:(Image removed from quote.) With how many bullets there were in the air at times...The chance of it happening at least once must have been fairly high....Considering the speed of bullets and the probability of them just bouncing off each other, due to the pointy tip? Not so much...I have managed to make a "robin" but it was only once in over 15 years of training/competing in archery. (I'll try to get a pic posted soon)
As I recall, the Mythbusters did this as well. I can't recall the results though.Def