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308 vs 30-06 and other rounds? WHY is a 308 better?!?

 
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  #85  
Old 09-08-2012, 09:49 PM
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Re: 308 vs 30-06 and other rounds? WHY is a 308 better?!?

Quote:
Originally Posted by Bart B View Post
The cartridge, bullets and rifles don't know what they're being used for. They perform the same way in any shooting discipline.
But then the same rifles rarely are used for both hunting and competition.

Quote:
Then why did the US Army Advanced Marksmanship Unit recently pick the .308 cartridge for the new service rifle they chose to out perform the .223 Rem. and 5.56 NATO in long range competition? If the '06 really was superior with all the modern powders, bullets, primers and cases, they would have picked it.
They chose the .308 for the same reasons we chose the 308 forty years ago. Nearly identical performance out of short action with far lower weigh for the same volume of ammo. They also shoot highly modified/accurized versions of existing service rifles and there is no 30-06 service rifle still in the inventory.

.308 bullets driven by any popular case is always going to be superior to the 5.56 at long range due to the higher BC bullets.
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  #86  
Old 03-13-2013, 08:32 PM
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Re: 308 vs 30-06 and other rounds? WHY is a 308 better?!?

Well, I got here on a search as a friend has a rifle in each caliber that were his Dad's. He is going to bring them both over tomorrow and let me shoot a couple boxes of ammo through them. I will make the choice depending on which weapon feels best to me and not worry about the caliber. Thanks for all the input.
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  #87  
Old 03-13-2013, 08:47 PM
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Re: 308 vs 30-06 and other rounds? WHY is a 308 better?!?

Well, I got here on a search as a friend has a rifle in each caliber that were his Dad's. He is going to bring them both over tomorrow and let me shoot a couple boxes of ammo through them. I will make the choice depending on which weapon feels best to me and not worry about the caliber. Thanks for all the input.
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  #88  
Old 03-13-2013, 10:10 PM
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Re: 308 vs 30-06 and other rounds? WHY is a 308 better?!?

In response to:
Why did the US Army Advanced Marksmanship Unit recently pick the .308 cartridge for the new service rifle they chose to out perform the .223 Rem. and 5.56 NATO in long range competition? If the '06 really was superior with all the modern powders, bullets, primers and cases, they would have picked it.
Quote:
Originally Posted by WildRose View Post
They chose the .308 for the same reasons we chose the 308 forty years ago. Nearly identical performance out of short action with far lower weigh for the same volume of ammo. They also shoot highly modified/accurized versions of existing service rifles and there is no 30-06 service rifle still in the inventory.
The Army wanted the best available semiauto .308 rifle to out perform the ones shooting 22 caliber bullets. If they had M14NM's available, they would have easily competed head to head with the 7.62 NATO Garands that were outperforming the 5.56 rifles at 1000 yards. They picked the AR10 because it was already available and did what they wanted it to do with the .308 round. But to get it allowed in NRA matches, the Army had to get the NRA to write a rule in the High Power Rule Book allowing AR10's to be a "Service Rifle" like M1, M14, M1A, M16 and AR15 rifles are; the NRA put it in the rule book. With hot loads with Berger 185 VLD's they did very well setting the record for service rifles in the long range team match at the Nationals last year. They did not want a .30-06 in any way.
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  #89  
Old 03-13-2013, 10:54 PM
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Re: 308 vs 30-06 and other rounds? WHY is a 308 better?!?

I have enjoyed reading all of the replys. Some of my buddies have 30-06 while myself and another buddy have 308'. I reload for all and have shot both reloads and factory through the chrono. 2 of the 06' are factory guns ( 1 a browning a bolt and the other a vanguard) both 308' are factory savage. My 308 with a 168 gr will shoot 25-60 fps faster than either 06 no matter the ammo. Both 308' shoot 155gr faster than both 06 and both 06 will shoot a 168 faster than my buddies 308. We have never used any heavier bullets so I can not say which would be better. As for one cartridge being better then the other is really in the eye of the beholder. In my experience with them they are side by side ballisticly. But my 308 is alot more forgiving on the shoulder at the end of the day.
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  #90  
Old 03-14-2013, 07:34 AM
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Re: 308 vs 30-06 and other rounds? WHY is a 308 better?!?

In comparing the .30-06's case capacity's about 20% more than the .308 and its powder charges are about 15% more than the .308's, there's no way a .308 Win. will shoot a given bullet of of a barrel whose bore is dimensionally equal to one chambered for the .30-06 when both produce their standard peak pressures.

However, a souped up .308's charge will certainly shoot a given bullet faster than a tamed down .30-06 load.

And a tight bore .308 barrel will usually shoot SAAMI spec .308 ammo's bullets out faster than a loose bore .30-06 shooting SAAMI spec ammo's bullets.

Luke, I'd like to know the load, dimensional and pressure differences between that .308's stuff that shoots the same bullet faster than the .30-06 stuff does. If you know them, please share them with us.
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  #91  
Old 03-14-2013, 07:47 AM
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Re: 308 vs 30-06 and other rounds? WHY is a 308 better?!?

Quote:
Originally Posted by Bart B View Post
Luke, I'd like to know the load, dimensional and pressure differences between that .308's stuff that shoots the same bullet faster than the .30-06 stuff does. If you know them, please share them with us.
That's what I was thinking as well. Sounds to me like you have a low powder charge in the 06' for accuracy and happen to find a high speed load suitable for your .308.
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