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SkyDekker

Sniper kills from over 2 miles

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“Canada has a world-class sniper system. It is not just a sniper. They work in pairs. There is an observer,” a military source said. “This is a skill set that only a very few people have.


I wonder how many people in the world could pull that off? Good work and a much better option than dropping bombs IMO.
You can't be drunk all day if you don't start early!

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Rick

“Canada has a world-class sniper system. It is not just a sniper. They work in pairs. There is an observer,” a military source said. “This is a skill set that only a very few people have.


I wonder how many people in the world could pull that off? Good work and a much better option than dropping bombs IMO.



Along with some luck. But skill is what puts you in a position for luck to work in your favor.
"I encourage all awesome dangerous behavior." - Jeffro Fincher

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Rifles of the Tac-50 family are capable of outstanding accuracy and guaranteed to provide 0.5 MOA groups with match-grade ammunition.

Source: https://en.wikipedia.org/wiki/McMillan_Tac-50

The physical group size equivalent to m minutes of arc can be calculated as follows: group size = tan(m/60) × distance.

Source: https://en.wikipedia.org/wiki/Minute_and_second_of_arc#Firearms

So: group size = tan(0.5/60) × 3450 meters =~ 0.515 meters = 51.5 cm.:o

And that is just the variable of the guns accuracy, not even considering atmospheric effects, gravity, the scope, and the human.
"There are only three things of value: younger women, faster airplanes, and bigger crocodiles" - Arthur Jones.

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SkyDekker

Canadian sniper apparently pulled off a kill from 3,540 meters.

That is 11,614 feet or 2.19 miles...

https://www.theglobeandmail.com/news/politics/canadian-elite-special-forces-sniper-sets-record-breaking-kill-shot-in-iraq/article35415651/

Edited to clickify



Most people have no idea what is involved in achieving shot placement at that range. The average target shooter who does well at 100 meters is totally unprepared for what bullets do at extreme ranges.

There is obviously the problem of bullet drop, where the tiniest deviation in elevation results in landing short or overshooting.

The effect of the mildest crosswind, which is insignificant at 100 meters, can result in the shot going completely wide.

Then you have such problems as the effect of spin as the bullet is dropping and no longer traveling along its axis.Two identical rifles aimed at precisely the same point, but having opposite rifling twist, will routinely hit many meters apart at extreme ranges by virtue of the different direction of spin.

The Wimbledon Cup, a 1,000 yd. competition, has seen 10 rounds in a 10 cm diameter group. Achieving that level of precision in the field at 3 1/2 times the range is astounding.

I've known snipers that could quite rightly claim "if I can see it, I can hit it." However, I'm not sure I could pick out the target at that range.

In any event, I'm impressed.


BSBD,

Winsor

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winsor

***Canadian sniper apparently pulled off a kill from 3,540 meters.

That is 11,614 feet or 2.19 miles...

https://www.theglobeandmail.com/news/politics/canadian-elite-special-forces-sniper-sets-record-breaking-kill-shot-in-iraq/article35415651/

Edited to clickify



Most people have no idea what is involved in achieving shot placement at that range. The average target shooter who does well at 100 meters is totally unprepared for what bullets do at extreme ranges.

There is obviously the problem of bullet drop, where the tiniest deviation in elevation results in landing short or overshooting.

The effect of the mildest crosswind, which is insignificant at 100 meters, can result in the shot going completely wide.

Then you have such problems as the effect of spin as the bullet is dropping and no longer traveling along its axis.Two identical rifles aimed at precisely the same point, but having opposite rifling twist, will routinely hit many meters apart at extreme ranges by virtue of the different direction of spin.

The Wimbledon Cup, a 1,000 yd. competition, has seen 10 rounds in a 10 cm diameter group. Achieving that level of precision in the field at 3 1/2 times the range is astounding.

I've known snipers that could quite rightly claim "if I can see it, I can hit it." However, I'm not sure I could pick out the target at that range.

In any event, I'm impressed.


BSBD,

Winsor

So if, in round figures, the flight time is 10s, what amount of drop is involved, and what will be the precession and coriolis effects?
...

The only sure way to survive a canopy collision is not to have one.

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kallend

******Canadian sniper apparently pulled off a kill from 3,540 meters.

That is 11,614 feet or 2.19 miles...

https://www.theglobeandmail.com/news/politics/canadian-elite-special-forces-sniper-sets-record-breaking-kill-shot-in-iraq/article35415651/

Edited to clickify



Most people have no idea what is involved in achieving shot placement at that range. The average target shooter who does well at 100 meters is totally unprepared for what bullets do at extreme ranges.

There is obviously the problem of bullet drop, where the tiniest deviation in elevation results in landing short or overshooting.

The effect of the mildest crosswind, which is insignificant at 100 meters, can result in the shot going completely wide.

Then you have such problems as the effect of spin as the bullet is dropping and no longer traveling along its axis.Two identical rifles aimed at precisely the same point, but having opposite rifling twist, will routinely hit many meters apart at extreme ranges by virtue of the different direction of spin.

The Wimbledon Cup, a 1,000 yd. competition, has seen 10 rounds in a 10 cm diameter group. Achieving that level of precision in the field at 3 1/2 times the range is astounding.

I've known snipers that could quite rightly claim "if I can see it, I can hit it." However, I'm not sure I could pick out the target at that range.

In any event, I'm impressed.


BSBD,

Winsor

So if, in round figures, the flight time is 10s, what amount of drop is involved, and what will be the precession and coriolis effects?

The largest factor is drop due to gravity. 1/2g*t^2 gives us something like 490 meters drop.

Coriolis is dependent upon latitude, muzzle velocity and direction of the shot (if we include the Eötvös effect). The difference in drop due to the Eötvös effect between a shot fired West vs. East is like 120 meters at 35,000m range (elevation +/- 60m) according to my casual calculations.

Assuming the axis of rotation of the projectile remains constant, I discount the effect of precession (I could be wrong).

Why do you ask? Even if you wanted to duplicate the feat, it would probably take a bit of practice.


BSBD,

Winsor

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yoink

Half a kilometer drop?? :o

Even without any of the other lateral corrections, even that is ridiculous. How do you go about even zeroing for that type of shot?



You don't. You calculate your expected trajectory, take a shot, and correct for the money shot. This is one reason why a skilled spotter is an integral part of a sniper team.

A 106mm recoilless rifle has a .50 BMG coaxial barrel for spotting. You fire spotting rounds (with visible smoke on impact) until you get a hit, then light off the main barrel. Hearing the 'TING!' of the spotting round on a lightly armored vehicle is cause for immediate evacuation by the crew, since a HEAT round is likely on the way.

There is a computer controlled sniping system now in use that does all the necessary calculations. The target is selected, the system evaluates range, azimuth, latitude, temperature, altitude, and determines the necessary point of aim. Pulling the trigger arms the system, and only when the barrel is pointed precisely at the target does the rifle fire.

In Star Wars everyone misses a lot. In practice the hit rate would approach 100%.


BSBD,

Winsor

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I'll never forget my first shot with a scope mounted on a .22, July fourth 1977, I figured with all the racket no one would notice me taking a shot out of my bedroom window. I had those crosshairs dead center on that full can of diet Dr Pepper about twenty yards away. I did neglect one small detail, the barrel of my gun was inside my windowsill. What a bang. I still have a small scar on my stomach.

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