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re: Clip of 711 yard shot with a .260 from the target's point of view

Posted on 4/1/25 at 3:11 pm to
Posted by TigerDeacon
West Monroe, LA
Member since Sep 2003
29763 posts
Posted on 4/1/25 at 3:11 pm to
quote:

Does the trajectory really arch like that or is that just an optical illusion?


Anybody have a link to the thread of one of the greatest OB debates ever?

Pages long discussion of whether a bullet rises when it is first fired.
Posted by tilco
Spanish Fort, AL
Member since Nov 2013
13999 posts
Posted on 4/1/25 at 3:18 pm to
Sweet GX
Posted by GumboPot
Member since Mar 2009
132597 posts
Posted on 4/1/25 at 3:30 pm to
quote:

Also note the ping on the target happens before the sound of rifle firing reached the target.


The speed of sound at sea level is about 1125 feet per second.

In the YT video you can see the flash at 2.5 seconds and the faint gun shot sound at 4.5 seconds.

If the shooter was 711 yards away, that is 2133 feet away.

2133 ft/2 s = 1066.5 ft/s....pretty close for a speed of sound estimate especially if it was cold that day.

Flash at 2.5 seconds and target ping a little less than 3.5 seconds. Let's say, 0.8 seconds.

2133 ft/0.8 seconds = 2666.25 ft/s....pretty close for a .260 round.

I like when the math works out.

Posted by GumboPot
Member since Mar 2009
132597 posts
Posted on 4/1/25 at 4:02 pm to
quote:

Pages long discussion of whether a bullet rises when it is first fired.



I'm very sure in this case the shooter has to aim the barrel of the gun above the target being 2133 feet away. If the barrel of the gun is parallel with the ground and the shooter is only a foot off the ground the bullet will land about 600 feet in front of him (so the bullet does not rise in this case). The barrel (not sights) needs to be angled 2-3 degrees above the target so the bullet travels an elliptical shape to the target (that's the rise you see). The shooters dials in his aim through trial and error.

Posted by Mid Iowa Tiger
Undisclosed Secure Location
Member since Feb 2008
21661 posts
Posted on 4/1/25 at 4:19 pm to
quote:

Crazy, I (stupidly apparently) assumed that the bullet is going so fast that it would just go in a straight line, but 711 yards is quite a stretch, so that makes sense.


Gravity always wins no matter how fast something is going unless it is under power.
Posted by lsupride87
Member since Dec 2007
103935 posts
Posted on 4/1/25 at 4:23 pm to
quote:

It really arches like that.
Only if the muzzle is aimed upward, which due to where the scope is to the muzzle it usually is. But a bullet will not rise unless the muzzle is up

I’m sure you know that but clarifying to OP why bullets “rise”
This post was edited on 4/1/25 at 4:25 pm
Posted by BottomlandBrew
Member since Aug 2010
28338 posts
Posted on 4/1/25 at 4:26 pm to
quote:

i feel like i could dodge the bullets in real life.


It takes 0.07 seconds for what you see with your eyes to go to your brain, and then another tenth of a second for the signal to go from your brain to your body to move. That does not count processing time in between. You're dead.
Posted by jizzle6609
Houston
Member since Jul 2009
14152 posts
Posted on 4/1/25 at 4:28 pm to
That was so gnarly.

I like the dudes ride in the background to.
Posted by Loup
Ferriday
Member since Apr 2019
14149 posts
Posted on 4/1/25 at 6:04 pm to
quote:

Only if the muzzle is aimed upward, which due to where the scope is to the muzzle it usually is. But a bullet will not rise unless the muzzle is up



True, it's a pet peeve of mine when somebody says a bullet is rising. I figured the dude i was answering understands trajectory and gravity.
Posted by kengel2
Team Gun
Member since Mar 2004
32875 posts
Posted on 4/1/25 at 6:20 pm to
quote:

Anybody have a link to the thread of one of the greatest OB debates ever?


I had the best Microsoft paint drawing for that thread.
Posted by biglego
San Francisco
Member since Nov 2007
80040 posts
Posted on 4/1/25 at 6:58 pm to
Was hoping it was the S&W.260 round from a revolver. Now that would’ve been an epic shot
Posted by IAmNERD
Member since May 2017
21647 posts
Posted on 4/1/25 at 7:08 pm to
quote:

assumed that the bullet is going so fast that it would just go in a straight line, but 711 yards is quite a stretch

Gravity affects everything no matter how fast it is traveling.
Posted by Hateradedrink
Member since May 2023
3086 posts
Posted on 4/1/25 at 7:10 pm to
quote:

Does the trajectory really arch like that or is that just an optical illusion?


It’s real, and the .260 actually shoots relatively flat.

I’d love to see this with a .308/7.62 NATO. Really puts those 1km+ kill shots into perspective.
Posted by 4Bagger
Member since Jan 2025
197 posts
Posted on 4/1/25 at 8:14 pm to
quote:

is that real time speed, i feel like i could dodge the bullets in real life.


It would hit you before you knew it was shot.
Posted by Funky Tide 8
Bayou Chico
Member since Feb 2009
54810 posts
Posted on 4/1/25 at 8:43 pm to
I promise I'm not an idiot, I just never really thought too much about bullets and gravity before today
Posted by Grnbud
Member since Jan 2025
107 posts
Posted on 4/1/25 at 8:52 pm to
The bullet isn’t arching due to gravity. It is flat relative to the curvature of the earth. If it didn’t hit the target it would just keep circling the earth in low orbit until the ground or an object got in the way. Take that flat earthers.
Posted by DownshiftAndFloorIt
Here
Member since Jan 2011
69041 posts
Posted on 4/1/25 at 8:59 pm to
quote:

pet peeve of mine when somebody says a bullet is rising


Its a reasonable first pass at what's going on if you've never dedicated any thought to it.

Posted by Scoob
Near Exxon
Member since Jun 2009
21754 posts
Posted on 4/1/25 at 9:24 pm to
quote:

quote:

do u even ballistic chart bro?



I don't. I know little about firearms and ammunition.
Go watch 9 Hole on youtube, Henry takes a lot of different rifles to shoot out to 500yds, sometimes out to 1000 depending on the gun. He has a spotter looking through a scope, and they use a camera to show the spotter's point of view.

For some of the rifles, when you get out to around 400 yds and definitely beyond, you can see the bullet arcing out to the target. It's impressive as hell when he does 500+ with some of the older guns with iron sights.
Posted by biglego
San Francisco
Member since Nov 2007
80040 posts
Posted on 4/1/25 at 11:19 pm to
It’s just surprising that the bullet was sort of visible
Posted by Wishnitwas1998
where TN, MS, and AL meet
Member since Oct 2010
61613 posts
Posted on 4/1/25 at 11:49 pm to
It's been a few years but I spent 15 years doing a lot of high powered varmint hunting at long distances and......I've never heard of a .260. wtf is a .260?

ETA: after doing some googling it's basically a little smaller than a 6.5 and is very common with silhouette shooters (sort explains why I've never heard of it)
This post was edited on 4/1/25 at 11:55 pm
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