.308 Ballistics

http://i48.tinypic.com/2h7nf6f.jpg

Gimp every one knows the .308 win is the undisputed king of everything!:P

LOL Can you draw us a ballistic chart for a 6.5?

My graphing software won't go to "forever"


(I did not draw this chart)

Actually If your talking animals you should bring that line back to 600

That's gold :)

Amusing, pity the graphs not particularly accurate.

i still would not stand at 1000 yard as a target

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Originally Posted by Walker

Amusing, pity the graphs not particularly accurate.

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True. .308 bullets usually don't have faces.

Well spotted gimp, was trying to figure the error.

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Originally Posted by Tussock

He is right, the main error I see, that .308 projectile is about 170yards long. I think you would struggle to load those to mag length.

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Extended mag box will make short work of that:thumbsup:

Need a long action too.

I'm not sure what I expected when I saw this title - this made me properly LOL :yaeh am not durnk:

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Originally Posted by Tussock

He is right, the main error I see, that .308 projectile is about 170yards long. I think you would struggle to load those to mag length.

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Good Call.

-There may also be an error in the maths: The graph suggests that a .308 projectile with a trajectory 50 inches high at 200yds will make it to 800 yds. I suspect this is an exageration. Perhaps they forgot to put a "x 10 to the power of" on the 50.

Then there's the compressed load .308 graph with the hot burning powder of course. That must have been the factory ammo graph that you found!!:P

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Originally Posted by nzteza

i still would not stand at 1000 yard as a target

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Probably why the armed forces use the caliber .

Or it's because of a bunch of bad decisions in the fifties and it would be a logistical nightmare to change

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Originally Posted by Tussock

I'm going to go with that.

It's popular because it's abundant. Not because it's any good.

What I find interesting is how uniquely terrible it is. If you put it among the rounds we have today, it's right at the sweet spot of crapness. That dead place where the velocities are low, the BC is impossible to get above awful and still fit the action and it has a lot of recoil for its meager performance.

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bwahaahaaha

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Originally Posted by Tussock

I'm going to go with that.

It's popular because it's abundant. Not because it's any good.

What I find interesting is how uniquely terrible it is. If you put it among the rounds we have today, it's right at the sweet spot of crapness. That dead place where the velocities are low, the BC is impossible to get above awful and still fit the action and it has a lot of recoil for its meager performance.

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So I see the anti-308 feeling is still strong then :D

It kinda looks like you threw a joint 800yards and it hit some magical wall, not sure why you would throw such a thing, usually its smoked...

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Originally Posted by Tussock

I'm going to go with that.

It's popular because it's abundant. Not because it's any good.

What I find interesting is how uniquely terrible it is. If you put it among the rounds we have today, it's right at the sweet spot of crapness. That dead place where the velocities are low, the BC is impossible to get above awful and still fit the action and it has a lot of recoil for its meager performance.

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7.62×51mm NATO - Wikipedia, the free encyclopedia
lt's a shame they didn't go with the British .280

Hey it did spawn some nice cartridges. I could say the same for .223/5.56 - The BC's are terrible, energy levels are pathetic. After shooting a bunch of animals with it, some repeatedly, I now understand the hate it gets in the military. It's just such a sporadic killer. Sometimes it drops shit good, other times things walk away full of holes.

Yip. The Grendel would be an obvious candidate for a service round. Can't really see it happening though.

Granted the 308 is never going to be a 1000y legend (opps it already is)
but sub 400 (where most everything is shot) there really isn't anything to better it in a non magnum short action round, you cant beat poking a big hole in something for killing stuff.
If you want to deliberately seek to shoot animals further then ANYTHING on the 08 case is not going to be your thing. But we all know that already;)

Recoil LMFAO

I actually wouldn't mind a .308 for fudding about *hides behind couch*

.62 x 2-2.5x expansion;) If diameter made no difference to killing power everyone would be using 22 cal FMJ on dangerous game.

Iv witnessed a 525y shot with a 223 at 21deg up on a fallow doe, leaning on a rock with 60y old eyes(not mine im not that fucken old:D) and a rifle that was sighted in at 25y 10 years previous with a different brand of factory 55gr varmint pills and a fixed 4x scope that looks like its been cleaned with scotch bright regularly.
It went 3 steps and rolled half way down to us, doesn't make it a long range cal, doesn't make it a consistent killer either.

As always performance on game is about matching projectile to impact velocity. Realistically 600 is it for 308 with available bullets both from impact velocity and windage.
But sub 400 Its hard to beat;)

I would never hesitate to use another .308 for hunting. Apart from 5.56 it is a rifle calibre that I have the most experience with.
I have once helped another soldier fire14,000+ rds of .308 in a day. It still brings a smile to my dial thinking about days like that, engaging targets over 2kms away.
Shot one in comps overseas and heaps of times here.
They are ballistic nightmares beyond certain ranges but if you can half way handle one, shooting ballistically better cals are easier.
They kill universally better in most bullet weights I have used as well.






Sent from my iPhone using Tapatalk. So please forgive my sausage fingers!!!

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Originally Posted by Tussock

7mm-08 has leaves it for dead:D

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That extra 10yds of MPBR eh... ;)

No, that extra .15 BC at 100fps faster

Quick check of factory ammo figures from Hornady website, as close as I can find to equivalent loads (both 'SST superformance')...

.308 150gr @ 3000fps, BC 0.415
7-08 139gr @ 2950fps, BC 0.486

And seeing as you made the comparison,

.223 55gr @ 3240, BC 0.255

Maybe I'm missing something... I might plug those figures into my ballistic calc and see how much difference 0.071 BC makes. I might learn something!

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Originally Posted by Beavis

Hey it did spawn some nice cartridges. I could say the same for .223/5.56 - The BC's are terrible, energy levels are pathetic. After shooting a bunch of animals with it, some repeatedly, I now understand the hate it gets in the military. It's just such a sporadic killer. Sometimes it drops shit good, other times things walk away full of holes.

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Better bullets help, what're you using?

Woooo .308 argument!! Haven't seen one in ages.

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Originally Posted by Tussock

Doesnt everything have enough ooomph at sub 400?

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Apparently not going buy the ones iv finished off with the 308:D

A 22lr has enough "oomph" to kill things with a lung shot at 120-150y but i still dont recommend it,As i saw a 223 has enough oomph at 525y but that was just silly.

I still cant tell the difference between my suppressed 243 and my 308 the old mans 30/06 recoil wise they all go bang and give a bit of a push.
No Im not a big guy by any means. I had free rein with a sporterised brass butt plate 303 from around 13y old, got a very light but fucked majestic at 15y in 308.
Talking standard cals recoil is in your head literally.Its the noise you react to.

My 308 un braked un suppressed with correct body position and hold i can spot my shots.
My suppressed 243 leaps off the bi pod like a 18 year old boy leaps on a willing participant.
Admittedly this is due to a shitty plastic stock but actual rearward thrust into my shoulder? all the same I reckon.
Recoil- ask Greg if you can shoot one of his new 375s without a brake:D

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Originally Posted by GravelBen

Maybe I'm missing something... I might plug those figures into my ballistic calc and see how much difference 0.071 BC makes. I might learn something!

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Figures plugged, using 10mph wind for arguments sake (yes, I realise neither of those will be the best possible round for each, just wanted to use the equivalent common hunting rounds).

At 400yds that 7-08 has 0.3" less drop and 1.8" less drift (and slightly less energy)
At 600yds that 7-08 has 2.5" less drop and 4.8" less drift (and slightly more energy)

So the 7-08 is ballistically better as you said, but I can't see the night and day difference people seem to suggest. Or is this like a Ford/Holden thing around here? (yeah I'm kinda new here)

And then we move to the 260 - king of the -08s :D

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Originally Posted by GravelBen

Figures plugged, using 10mph wind for arguments sake (yes, I realise neither of those will be the best possible round for each, just wanted to use the equivalent common hunting rounds).

At 400yds that 7-08 has 0.3" less drop and 1.8" less drift (and slightly less energy)
At 600yds that 7-08 has 2.5" less drop and 4.8" less drift (and slightly more energy)

So the 7-08 is ballistically better as you said, but I can't see the night and day difference people seem to suggest. Or is this like a Ford/Holden thing around here? (yeah I'm kinda new here)

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This is pretty much a long range site:D Now why on earth would you want to poke a big hole in something up close lol
http://www.nzhuntingandshooting.co.n...-45-70-a-2972/

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Originally Posted by GravelBen

Figures plugged, using 10mph wind for arguments sake (yes, I realise neither of those will be the best possible round for each, just wanted to use the equivalent common hunting rounds).

At 400yds that 7-08 has 0.3" less drop and 1.8" less drift (and slightly less energy)
At 600yds that 7-08 has 2.5" less drop and 4.8" less drift (and slightly more energy)

So the 7-08 is ballistically better as you said, but I can't see the night and day difference people seem to suggest. Or is this like a Ford/Holden thing around here? (yeah I'm kinda new here)

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It depends on the bullet you use, you have the choice to use better bullets in the 7-08 at faster speeds than the .308 can manage for the same BC, ie, 162gr amax at ~2750fps

.30 cal 208gr amax is about the same BC but can't get it much more than 2500fps and it kicks much more than the 7mm. No not compared to a .375 but that's a kinda misleading comparison, the .375 kicks less than a .50BMG and then where do you go from there, it's not an apples to apples comparison is it

Is it waaaay better no, but it is better on the same case for less recoil and the same cost to shoot, there's no real reason to go with the .308 if you reload/shoot more than 200-300 meters, factory 7mm08 rifles will stabilise the good bullets, rah ran rah


I can't believe I'm so bored I'm posting on this thread. I should've known this would happen

If you're poking a hole in something up close, it doesn't seem to matter much what you use, I never had anything walk away from my .243, use the right bullet and hit it in the right place and it'll die with any reasonable calibre, therefore the only difference worth talking about is longer range difference


Blah blah blah I'm going to go find something productive to do, like poking a taipan with a short stick

Oh just to add if your a "recoil sensitive" person the best thing you could do is go bunny shooting with your hunting rifle. and i dont mean lying prone trying to shoot them from as far as possible I mean walking around shooting them at 25 75 y, you will be having to much fun to notice the noise or recoil;) shot heaps of bunnys with that 303:cool:

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Originally Posted by Spanners

And then we move to the 260 - king of the -08s :D

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If its AI' ed it is.


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