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7.62 vs 30-06

This is a discussion on 7.62 vs 30-06 within the Steel and Wood forums, part of the Rifle Forum category; What are the benefits of 7.62 over 30-06? Is it more avaialable, cheaper, etc.????? I know that 7.62 is considered .308, but 7.62mm=0.300 inches. What's ...


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Old December 7th, 2005, 12:04 PM   #1
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7.62 vs 30-06

What are the benefits of 7.62 over 30-06? Is it more avaialable, cheaper, etc.?????

I know that 7.62 is considered .308, but 7.62mm=0.300 inches. What's up with that?

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Old December 7th, 2005, 12:19 PM   #2
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7.62x51 is known as .308, after the bullet diameter. .30-06, in NATO parlance is 7.62x63. Both use the same bullet diameter. Currently, the .308 is more readily available in Milsurp. For hunting, the .30-06 will do anything that the .308 will do, just a little better. The .30-06 will shoot 200-220 grain bullets, while the .308 tops out at 180 gr.. The .30-06 is also a little faster per given bullet weight. Does it make a difference? Depends on what you're hunting.

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Old December 7th, 2005, 01:13 PM   #3
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Supposedly if you're shooting commercial .30-06 (different powder burn rate) or heavy-weight bullets in a Garand you need an adjustible gas plug to keep from harming the action.

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Old December 8th, 2005, 12:07 PM   #4
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I remember reading about the gas pressure issues with commercial 30-06 due to overly aggresive powder and bullet weight. I've also read that there is a problem with slam fire when non-milspec ammo is used. Does the 7.62 not suffer from that issue?

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Old December 8th, 2005, 12:59 PM   #5
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Quote:
Originally Posted by Starbase DCC
I remember reading about the gas pressure issues with commercial 30-06 due to overly aggresive powder and bullet weight. I've also read that there is a problem with slam fire when non-milspec ammo is used. Does the 7.62 not suffer from that issue?
I believe the slam fire issue for both rifles are aimed at hand loaders. SAI tells you in the owners manual what ammo they recommend.

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Old December 8th, 2005, 02:47 PM   #6
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From the gas-gun point of view, there's not much difference between the 7.62 and 30-06, except that 7.62 will probably be cheaper in the long term. Accuracy and the acceptable range of bullet weights is the same.

Slamfire, although extremely rare, is a concern with any ammo fed in the M1/M14.

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Old December 8th, 2005, 06:55 PM   #7
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No extremely rate occurrence is a concern. Airplane parts fall off and hit houses all the time. I'm not concerned, are you? Got a number on the documented "slamfires" with these rifles? There isn't even a caution in the techincal manuals.

Surplus 7.62mm NATO ammo is still plentiful. Not much .30 M2 Ball around these days.

In military loadings the M1 and M14 shoot the same projectile at the same velocity. Smaller case used by the M14 is the result of better powder in the 50 years between 1903 and 1953.

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Old December 9th, 2005, 06:54 AM   #8
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There isn't even a caution in the techincal manuals.
Yes there is, that's where I read it. I don't remember who's site it was on, but it was the manual they sent with the rifle. I'll dig around a bit and see if I can find it.

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Old December 9th, 2005, 08:37 AM   #9
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That would be page 7.

Also a warning not to exceed 180gr bullets.

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Old December 9th, 2005, 10:13 AM   #10
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Originally Posted by Starbase DCC
Yes there is, that's where I read it. I don't remember who's site it was on, but it was the manual they sent with the rifle. I'll dig around a bit and see if I can find it.
I think he was refering to the DOD Field and Tech Manuals. With surplus ammo and a servicible rifle, the risk is near zero. The mil-spec requirements give a high degree of assurance that the ammo is well within the tolerances required by the rifle's design to ensure an adequate margin of safety.

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