.338 Lapua from 1.43 Miles Away **VIDEO**

[jhirsh5280]

Just saw this this morning. Apologies if its a repost. Thought it was pretty cool

http://www.theblaze.com/stories/2014/04/21/watch-this-incredible-long-range-rifle-shot-from-nearly-1-5-miles-away/


http://www.liveleak.com/view?i=faa_1398007067

[MrPrena]

Nice shooting.

Followup shots are extremely fast compare to me.
I can't see jack sh!t with 20x near 55-60% of the distance, but 22x NF sure is different/better.

[HoneyBadger]

Wow. I wonder at what point that first bullet started to tumble.

I wonder how many bullets missed before the first hit?

[Hound]

That is awesome! Great setup.

[kidicarus13]

Damn!

[SouthPaw]

Very impressive.

[kwando]

awesome!

[cofi]

Wow. I wonder at what point that first bullet started to tumble.

I wonder how many bullets missed before the first hit?
Said 2400yd it became subsonic that's when they tumble

[RonMexico]

Now I miss my BA110

This goes to show that you don't need a 6k rifle.... Just a 1800dollar rifle and scope and a lot of practice.

[JMBD2112]

I wonder how many bullets missed before the first hit?

Same here, but still impressive. It took me a while to hit the 1K meter mark.

[GunsRBadMMMMKay]

Did the first round bounce off the ground first or did it just keyhole on it's own?

[Delfuego]

Did the first round bounce off the ground first or did it just keyhole on it's own?That was a skip...

[Tim K]

Bullets get more stable the farther they fly, not less. The speed of rotation doesn't decay as quickly as the forward velocity, so the stability factor increases with distance from the muzzle.

[cofi]

Bullets get more stable the farther they fly, not less. The speed of rotation doesn't decay as quickly as the forward velocity, so the stability factor increases with distance from the muzzle.

This is from wiki so it may be wrong but
The transonic problem[edit (http://en.wikipedia.org/w/index.php?title=External_ballistics&action=edit&section=15)]When the velocity of a rifle bullet fired at supersonic (http://en.wikipedia.org/wiki/Supersonic) muzzle velocity approaches the speed of sound it enters the transonic (http://en.wikipedia.org/wiki/Transonic)region (about Mach (http://en.wikipedia.org/wiki/Mach_number) 1.2–0.8). In the transonic region, the centre of pressure (CP) of most bullets shifts forward as the bullet decelerates. That CP shift affects the (dynamic) stability of the bullet. If the bullet is not well stabilized, it can not remain pointing forward through the transonic region (the bullets starts to exhibit an unwanted precession (http://en.wikipedia.org/wiki/Precession) or coning motion that, if not damped out, can eventually end in uncontrollable tumbling along the length axis). However, even if the bullet has sufficient stability (static and dynamic) to be able to fly through the transonic region and stays pointing forward, it is still affected. The erratic and sudden CP shift and (temporary) decrease of dynamic stability can cause significant dispersion (and hence significant accuracy decay), even if the bullet's flight becomes well behaved again when it enters the subsonic (http://en.wikipedia.org/wiki/Speed_of_sound) region. This makes accurately predicting the ballistic behavior of bullets in the transonic region very difficult. Further the ambient air density (http://en.wikipedia.org/wiki/Air_density) has a significant effect on dynamic stability during transonic transition. Though the ambient air density is a variable environmental factor, adverse transonic transition effects can be negated better by bullets traveling through less dense air, than when traveling through denser air. Because of this, marksmen normally restrict themselves to engaging targets within the supersonic range of the bullet used.[note 1] (http://en.wikipedia.org/wiki/External_ballistics#cite_note-22)

[bobbyfairbanks]

Bullets get more stable the farther they fly, not less. The speed of rotation doesn't decay as quickly as the forward velocity, so the stability factor increases with distance from the muzzle.

But no one will believe you because their daddy told them that bullets go tumbling.[ROFL1]

[MrPrena]

Physicists and/or Aerospace Engineers are ones I would listen to.

http://physics.info/turbulence/

[cofi]

Physicists and/or Aerospace Engineers are ones I would listen to.

http://physics.info/turbulence/
Looks to me like that supports tumbling

[Irving]

I only listen to my local elected official when it comes to gun info.

[cofi]

http://thearmsguide.com/5348/long-range-shooting-external-ballistics-transonic-region/#prettyPhoto

[Tim K]

Read Litz's first book if you want a detailed explanation. To be clear, I should have said that a bullets stability as predicted by the Miller Stability formula increases with distance from the muzzle. Whether or not a bullet become unstable in the transonic region is dependent on a number of factors including bullet shape, rotational velocity, etc. Many of the long pointy bullets used by LR shooters remain stable through the transonic region.

[Tim K]

Physicists and/or Aerospace Engineers are ones I would listen to.

http://physics.info/turbulence/

I'm an aerospace engineer, at least I was for 15 years before I started my business. The linked page looks like the course summary for Fluid Mechanics. You'd be better served buying Brian Litz's book.

http://appliedballisticsllc.com/

It's applied physics rather than theoretical physics. Much more useful to the average reader.

[MrPrena]

I only listen to my local elected official when it comes to gun info.

lol


Looks to me like that supports tumbling


I'm an aerospace engineer, at least I was for 15 years before I started my business. The linked page looks like the course summary for Fluid Mechanics. You'd be better served buying Brian Litz's book.

http://appliedballisticsllc.com/

It's applied physics rather than theoretical physics. Much more useful to the average reader.


Thanks.
With limited Classical physics knowledge, I had no idea what bullet will do at trans and sub.

[Trav]

Wicked, I'll be glad if I can consistently hit at 1000.

[Kraven251]

The Berger rounds are pretty amazing all the way around, http://appliedballisticsllc.com/ has some pretty good material on those and their characteristics.

[Kraven251]

I'm an aerospace engineer, at least I was for 15 years before I started my business. The linked page looks like the course summary for Fluid Mechanics. You'd be better served buying Brian Litz's book.

http://appliedballisticsllc.com/

It's applied physics rather than theoretical physics. Much more useful to the average reader.

heh, I missed your post when I posted, but that book is amazing. There is also a really good book out there on reading the wind called the wind book for rifle shooters. http://www.amazon.com/The-Wind-Book-Rifle-Shooters/dp/1581605323

[Hoser]

I only listen to my local elected official when it comes to gun info.

Funniest thing posted on this forum in years.