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know one's chambered 30-06 & 1- 308
I also understand the work in that action properly there are a few recommended powders and loads. question b with these recommended loads how much faster velocity is a 30-06 doing over the 308? with equal weight bullets or is that a big factor also? if the bullet weight is not a that bigger Factor let's just say 168


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The Garand is capable of more velocity. It just depends on the load. The big difference is the 8 round clip verses the magazine. Garands can be chambered in 308/7.62 but typically are not. The M1A's have a simplified gas operating system over the M1 Garand. As per velocity differences; some, but not a lot. Since the U.S. took the M1A over the Garand starting in the 1950's it appears that velocity isn't a real big issue. Ammo commonality with the other NATO nations appears to be a driving factor.

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24 inch barrel vs 22 inch barrel too.

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M1A was never a government issued rifle. It's a commercial semi auto version of the select fire M14 which requires a Class III license and a warehouse full of 7.62 ammo to feed it. There are better choices than the M1A if you want a military style rifle chambered for the NATO round. The .30-06 round the M-1 fires has about a 200 FPS advantage over the 7.62- - - -same bullet, more powder.


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great information it took a while but thank you for those that replied..

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Although I never had a M1A, I shot a government issue M14 quite a bit. I own two M1 Garands, one looks like new (I've never shot it), the other I've shot in competition. For war the M14 is better, in my opinion. For accuracy, I think the M1 wins out, but then I only shot military ammo in the M14. However, from what I have heard from people who own the M1A's and M1's, the M1 is more accurate. In Marine Corps boot camp I shot a 496 out of 500 possible with the M14, so it's no slouch.

From the internet - Wikipedia:

The 7.62x51:
Maximum pressure (NATO EPVAT) 60,191 psi (415.00 MPa)
Ballistic performance
Bullet mass/type Velocity Energy
147 gr (10 g) M80 FMJ 2,800 ft/s (850 m/s) 2,559 ft⋅lbf (3,470 J)
175 gr (11 g) M118 long range BTHP 2,600 ft/s (790 m/s) 2,627 ft⋅lbf (3,562 J)


the 308 Win:
Maximum pressure (C.I.P.) 60,191 psi (415.00 MPa)
Maximum pressure (SAAMI) 62,000 psi (430 MPa)
Ballistic performance
Bullet mass/type Velocity Energy
125 gr (8 g) Spitzer 3,100 ft/s (940 m/s) 2,668 ft⋅lbf (3,617 J)
150 gr (10 g) Nosler tip 2,820 ft/s (860 m/s) 2,648 ft⋅lbf (3,590 J)
168 gr (11 g) BTHP 2,650 ft/s (810 m/s) 2,619 ft⋅lbf (3,551 J)
175 gr (11 g) BTHP 2,645 ft/s (806 m/s) 2,718 ft⋅lbf (3,685 J)
185 gr (12 g) Lapua Mega JSP 2,510 ft/s (770 m/s) 2,588 ft⋅lbf (3,509 J)

The 30-06 AKA 7.62x63:
Maximum pressure (C.I.P.) 58,740 psi (405.0 MPa)
Maximum pressure (SAAMI) 60,000 psi (410 MPa)
Maximum CUP 50,000[2] CUP
Ballistic performance
Bullet mass/type Velocity Energy
150 gr (10 g) Nosler Ballistic Tip 2,910 ft/s (890 m/s) 2,820 ft⋅lbf (3,820 J)
165 gr (11 g) BTSP 2,800 ft/s (850 m/s) 2,872 ft⋅lbf (3,894 J)
180 gr (12 g) Core-Lokt Soft Point 2,700 ft/s (820 m/s) 2,913 ft⋅lbf (3,949 J)
200 gr (13 g) Partition 2,569 ft/s (783 m/s) 2,932 ft⋅lbf (3,975 J)
220 gr (14 g) RN 2,500 ft/s (760 m/s) 3,036 ft⋅lbf (4,116 J)

It looks like the 30-06 beats the 7.62x51 by about 100 FPS or a little more.



Note the 7.62x51 NATO has a lower pressure than the 308 SAAMI rating.

This information is from Wikipedia and you can read a lot more there.

Last edited by Bugger; 12/03/22.

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ldholton, if you intend to purchase a M1 or M1a I suggest looking at Hodgdon's online data for M1 Garand and 308 service rifle data.

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Originally Posted by ldholton
know one's chambered 30-06 & 1- 308
I also understand the work in that action properly there are a few recommended powders and loads. question b with these recommended loads how much faster velocity is a 30-06 doing over the 308? with equal weight bullets or is that a big factor also? if the bullet weight is not a that bigger Factor let's just say 168

For factory ball ammo... the M1A is generally a little faster.

But, if you install a GarandGear Ported Gas Plug?

[Linked Image from garandgear.com]


... factory or hand-load 30-06 hunting rounds shine.


I prefer the M1 Rifle for hunting.

It's smooth bottomed and handles well in the field.

Generally shoot 168 gr. TSX ammo.




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4895 shines in either although I am sure newer powders work also. I started competition in the mid 60's with a 1903 Springfield but graduated to an M1 when DCM (now CMP) started selling them. I have had three of them. It was fairly easy to bring one of the DCM service grade rifles up to national match standards if you were luckily enough to get one with a new barrel. I had an opportunity to shoot a M14 when I lived in Albuquerque and Navy team was shooting beside me.I am still using National Match brass that they gave me. I did better with them M1.


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op rods are longer on an M1. tend to bend.
i speak from years with the navy team and hanging out on the crane truck. those in the know will know what i mean by crane truck. you get to see all the issues come in and go out perfect
my vote is for the M1A.
M1A is easier to load from prone.


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Op rod bending on a Garand is a function of the powder used. IMR4895 was designed for the Garand. I cannot speak to the MiA
Also with the Garand top end loads even with INR4895 need to be avoided.
A good loading manual will have a section just for Garand

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Originally Posted by WStrayer
Op rod bending on a Garand is a function of the powder used. IMR4895 was designed for the Garand. I cannot speak to the MiA
Also with the Garand top end loads even with IMR4895 need to be avoided.
A good loading manual will have a section just for Garand

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The literature that comes with an M1A from Springfield says their rifles are cleared to shoot all Nato 7.62 ammo and all .308 ammo except the High Energy stuff.
As I understand it, the M1 should be loaded to about 2700 fps. with 150 gr. bullets. That means if there is any difference, it would be with the .308 ammo.
As far as accuracy is concerned, both of my rack grade M1A's shoot best with milder handloads. The Squad Scout puts four into 1 MOA with 46 grs. of TAC and any good 125-130 gr. bullet. The Scom 16 is good for about 2 MOA with 34 grs. of AA5744. These are with the heavier military style brass. E

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thank everyone giving the information. I'm just always been under the assumption the Grande is actually loaded fairly light for the O6 nowadays. I just didn't know with equal weight bullets at the M1A pretty much shot at same velocities with recommended loads....

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Mule Deer wrote an article on the Garand


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I think one has to back up to intended use & desires for such a purchase. I/we have both, 2 Garands and a Springfield M1A. Yes, the Garand has the history & is a formidable rifle no doubt.

The M1A is no slouch. I think I’d grab that first over the Garand if I needed such a rifle. It just seems more trouble free, digest about any ammo without issues.

Just a layman’s opinion, yes I realize we won WW-II.

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Interesting article on the M14:

The M14, Not Much For Fighting


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Originally Posted by High_Noon
Interesting article on the M14:

The M14, Not Much For Fighting

That guy is a total moron. 40 of my platoon was killed with in two weeks of being forced to have the POS AKA M16.
That guy never had a combat rifle in his hand. Total moron.


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Originally Posted by Bugger
Originally Posted by High_Noon
Interesting article on the M14:

The M14, Not Much For Fighting

That guy is a total moron. 40 of my platoon was killed with in two weeks of being forced to have the POS AKA M16.
That guy never had a combat rifle in his hand. Total moron.
Damn ...
I would love to sit down with you and get some history lessons first hand

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Would rather carry an M60……but the the M14 was to heavy….. from the article.

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