New sniper record

[ACE]

Thats a long way for a sniper lol.

[Vulcan]

So what scope has 168 MOA adjustments?

[mensa180]

Irrelevant of the weapon used, if he really got two guys at over a mile and a half away in quick succession that's amazing.

[morfiend]

Oneway you have to also remember what alt they are taking the shot at.  The Canadian that had the previous record did the shot at I believe around 10k.  When he was interviewed he stated at that alt it was a mixture of the american bullets he was using with his weapon (not sure what he shot with) and the altitude.  Altitude he was getting much greater range because of the less dense air.

Yes I know It is the History Channel but they explain what happens at alt and the different effects it has on sniping.  It explains how Furlong got the previous record the the factors into it.
 
http://www.youtube.com/watch?v=m3jVEB_UiQE

  The weapon in question was the TAC 50 as for the exact ammo used I'm not sure,2450yds is a long wat down range.For you horse race fans thats 12.1 furlongs.All in all both were incredible shots,glad I'm not the one tasked with that job.

   

[oneway]

Gentlemen...

If anyone still believes the details of this story I offer the following ballistics data for the 338 Lapua Magnum shooting a Sierra 300 grain Hollow Point Boat Tail Matchking projectile with a muzzle velocity of 2800 fps, a zero point at 1500 yards, 10% humidity, 10,000 elevation....

Please note that with zero point (point blank) of 1500, the bullet still drops 1437 inches in the last 1000 yards as the bullet finishes its trajectory down range..

Further, it takes the slug over 4 seconds to travel this distance......

The story is pure hogwash or the reporter didn't get it right or was fed misinformation intentionally...

Trajectory
Input Data
Ballistic Coefficient:    0.700 G1    Caliber:    0.338 in
Bullet Weight:    300.0 gr       
Muzzle Velocity:   2800.0 ft/s   Distance to Chronograph:   10.0 ft
Sight Height:   1.50 in   Sight Offset:   0.00 in
Zero Height:   0.00 in   Zero Offset:   0.00 in
Windage:   0.000 MOA   Elevation:   0.000 MOA
Line Of Sight Angle:   0.0 deg   Cant Angle:   0.0 deg
Wind Speed:   10.0 mph   Wind Angle:   90.0 deg
Target Speed:   0.0 mph   Target Angle:   90.0 deg
Temperature:   59.0 °F   Pressure:   29.92 in Hg
Humidity:   10.0 %   Altitude:   10000.0 ft
Vital Zone Radius:   5.0 in      
Std. Atmosphere at Altitude:   Yes   Pressure is Corrected:   Yes
Zero at Max. Point Blank Range:   No   Target Relative Drops:   Yes
Mark Sound Barrier Crossing:   No   Include Extra Rows:   No
Column 1 Units:   1.00 in   Column 2 Units:   1.00 MOA
Round Output to Whole Numbers:   No      
Output Data
Elevation:   47.845 MOA   Windage:   0.000 MOA
Atmospheric Density:   0.05647 lb/ft³   Speed of Sound:   1077.4 ft/s
Maximum PBR:   360 yd   Maximum PBR Zero:   304 yd
Range of Maximum Height:   165 yd   Energy at Maximum PBR:   4039.6 ft•lbs
Sectional Density:   0.375 lb/in²      
Calculated Table
Range   Drop   Drop   Windage   Windage   Velocity   Mach   Energy   Time   Lead   Lead
(yd)   (in)   (MOA)   (in)   (MOA)   (ft/s)   (none)   (ft•lbs)   (s)   (in)   (MOA)
0    -1.5    ***    0.0    ***    2803.3    2.602    5233.9    0.000    0.0    ***
200    89.4    42.7    1.4    0.7    2610.6    2.423    4539.2    0.222    0.0    0.0
400    159.9    38.2    5.7    1.3    2426.4    2.252    3921.1    0.460    0.0    0.0
600    206.8    32.9    13.2    2.1    2249.8    2.088    3371.2    0.717    0.0    0.0
800    226.1    27.0    24.3    2.9    2080.6    1.931    2883.1    0.994    0.0    0.0
1000    213.2    20.4    39.5    3.8    1918.8    1.781    2452.1    1.295    0.0    0.0
1200    162.5    12.9    59.2    4.7    1764.9    1.638    2074.7    1.621    0.0    0.0
1400    67.0    4.6    84.0    5.7    1619.9    1.504    1747.6    1.976    0.0    0.0
1600    -81.7    -4.9    114.5    6.8    1484.8    1.378    1468.3    2.363    0.0    0.0
1800    -293.5    -15.6    151.1    8.0    1361.3    1.264    1234.3    2.785    0.0    0.0
2000    -580.6    -27.7    194.5    9.3    1251.4    1.162    1043.0    3.246    0.0    0.0
2200    -956.8    -41.5    244.8    10.6    1157.1    1.074    891.8    3.745    0.0    0.0
2400    -1437.2    -57.2    301.9    12.0    1080.4    1.003    777.4    4.284    0.0    0.0

[kilo2]

i am going to take a guess, that is not a full metal jacket bullet

[RTHolmes]

Gentlemen...

If anyone still believes the details of this story I offer the following ballistics data for the 338 Lapua Magnum shooting a Sierra 300 grain Hollow Point Boat Tail Matchking projectile with a muzzle velocity of 2800 fps, a zero point at 1500 yards, 10% humidity, 10,000 elevation....

etc...

which part(s) of it are you disputing and why?

[oneway]

The term FMJ means the entire projectile is clad in copper or a copper alloy or equivalent...Hollow Point Match Bullets such as the one used in the calculation are far and away ballisticially superior to FMJ. The small hollow tip traps air and creates in essence a frictionless micro bubble of air at the tip of the bullet, vastly improving the characteristics of the round...

All long range match shooting is done with hollow points, and all branches of our military use HPBT's in their dedicated small caliber sniper weapons, as well as the SDM/SAM weapons (Squad Designated Marksmen, Squad Advanced Marksman) such as the various M16/AR10 variants...

BT stands for boat tail, and describes a bullet that has a slightly tapered rear which is also a feature of long range bullets...

If anyone would like to run their own tables use this link

http://www.jbmballistics.com/cgi-bin/jbmtraj-5.1.cgi

I ran another test using 2500 yards as the zero point...notice that at its apogee, this round is over 83 feet above the line of sight...it is truly a ballistic trajectory not unlike a missile or rocket...

300 grains was chosen over the faster 250 grain slug because the 250 grain slug would scarcely have enough energy to break a window at that range

Calculated Table
Range   Drop   Drop   Windage   Windage   Velocity   Mach   Energy   Time   Lead   Lead
(yd)   (in)   (MOA)   (in)   (MOA)   (ft/s)   (none)   (ft•lbs)   (s)   (in)   (MOA)
0    -1.5    ***    0.0    ***    2803.3    2.602    5233.9    0.000    0.0    ***
200    227.4    108.6    1.4    0.7    2610.4    2.423    4538.5    0.222    0.0    0.0
400    435.8    104.0    5.7    1.4    2426.0    2.252    3919.8    0.460    0.0    0.0
600    620.6    98.8    13.2    2.1    2249.2    2.088    3369.4    0.717    0.0    0.0
800    777.7    92.8    24.3    2.9    2079.8    1.930    2881.0    0.995    0.0    0.0
1000    902.7    86.2    39.5    3.8    1917.8    1.780    2449.7    1.295    0.0    0.0
1200    989.7    78.8    59.3    4.7    1763.8    1.637    2072.1    1.622    0.0    0.0
1400    1032.0    70.4    84.1    5.7    1618.6    1.502    1744.9    1.977    0.0    0.0 +/-Apogee
1600    1021.1    60.9    114.6    6.8    1483.5    1.377    1465.7    2.364    0.0    0.0
1800    946.8    50.2    151.3    8.0    1359.9    1.262    1231.7    2.787    0.0    0.0
2000    797.2    38.1    194.6    9.3    1249.9    1.160    1040.6    3.247    0.0    0.0
2200    558.4    24.2    244.9    10.6    1155.7    1.073    889.6    3.747    0.0    0.0
2400    215.4    8.6    302.0    12.0    1079.1    1.002    775.5    4.286    0.0    0.0

[Scherf]

meh, you're saying the round drops 7 feet in the time it takes to travel 200 yards?

Hell, I could just walk it over to the bad guy at that rate.

[oneway]

which part(s) of it are you disputing and why?

It never happened...the story is bogus...I dispute the entire thing.

As I stated earlier: Either the reporter got it wrong, he was fed a line of bull, or he was purposely fed disinformation.

Oneway

[oneway]

meh, you're saying the round drops 7 feet in the time it takes to travel 200 yards?

Hell, I could just walk it over to the bad guy at that rate.

drop is negative and rise is positive...

What your referring to as 7 feet of drop is 7 feet of rise for the zero point at 1500. In other words the bullet is climbing up hill on its way to apogee before it finally begins it fall back to earth.

Drop is relative to the angle of elevation and the point at which you zero your range...one could say the entire drop is the cumulitive values of rise and drop below LOS (Line of sight)...or you could simplify things and say drop is all that fall below LOS (Zero Point)...

Oneway

[RTHolmes]

It never happened...the story is bogus...I dispute the entire thing.

again ... based on what?

[oneway]

The ballistic characteristics of the 338 Lapua Magnum 2500 yards down range

Are you paying attention?

[oneway]

Here let me help you further understand:

Quote from the article itself - The distance to his two targets was 8,120ft, or 1.54 miles - according to a GPS system - and about 3,000ft beyond the weapon's effective range.

The story reeks of BS and the story itself gives you the necessary information to come to the same conclusion I did, without all of the ballistic gyrations..

 

Oneway

[Scherf]

drop is negative and rise is positive...

What your referring to as 7 feet of drop is 7 feet of rise for the zero point at 1500. In other words the bullet is climbing up hill on its way to apogee before it finally begins it fall back to earth.

Drop is relative to the angle of elevation and the point at which you zero your range...one could say the entire drop is the cumulitive values of rise and drop below LOS (Line of sight)...or you could simplify things and say drop is all that fall below LOS (Zero Point)...

Oneway

Fair enough.