Ruger Mini-14 and Mini-30 Ruger Mini-14 and Mini-30 family of rifles

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Old 12-27-2008, 14:54   #1
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Can 5.56 NATO spec ammunition be shot in a Mini-14?

I have read that NATO 5.56 cannot be shot from a mini-14 because the rounds create too much pressure for the Mini-14's to tolerate. Can anyone tell me if this is correct or not please.
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Old 12-27-2008, 16:07   #2
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The following is coppied and pasted straight from the instruction manual for the Ruger all weather ranch rifle located on their web site. I suggest that you go there and find the instruction manual for your particular model of mini.


http://www.ruger-firearms.com/Firearms/PDF/InstructionManuals/55.pdf

PLEASE NOTE THAT THE MANUAL IN THE LINK IS FOR A SPECIFIC RANGE OF S/N AS WELL AS THE INFO BELOW


"The RUGER® MINI-14® RANCH RIFLES are chambered for the .223
Remington (5.56mm) cartridge. The Mini-14 Ranch Rifle is designed to use either
standardized U.S. military, or factory loaded sporting .223 (5.56mm) cartridges
manufactured in accordance with U.S. industry practice. See “Ammunition
Notice” & “Warning - Ammunition,” below.
USE ONLY FACTORY AMMUNITION LOADED
TO U.S. INDUSTRY STANDARDS"



RickH
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Last edited by RickH; 12-27-2008 at 16:17.
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Old 12-27-2008, 17:24   #3
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Thank-you RickH. I thought what I had read seemed a bit wrong. The Mini-14 is inherently strong and should be able to shoot mil-spec ammunition. I'll read the Ruger info.
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Old 12-27-2008, 19:07   #4
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My ancient ranchrifle consumes both quite well.
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Old 12-27-2008, 20:08   #5
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I've got a 580 series and the manual says it will shoot 5.56 mil spec ammo.
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Old 12-27-2008, 20:11   #6
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The same is true for the 183- and 185-series Mini-14s.
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Old 12-28-2008, 01:41   #7
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The only problem I can think of that has any true merit IMO, other than condition of the ammo, is that ss109 62 grainers may have pretty terrible accuracy out of a 1 in 10 barrel that went into some of the minis. My 1 in 9 mini loves them though. My 1 in 10 is my straightest shooter, at 2moa, but can't hit a tincan at 50 yards with 62 grain bullets.
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Old 12-28-2008, 10:15   #8
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Is the 580 barrel 1 in 9? Is the M-16A2 also 1 in 9?
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Old 12-28-2008, 10:37   #9
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Originally Posted by Teapot View Post
Is the 580 barrel 1 in 9? Is the M-16A2 also 1 in 9?
Yes it's a 1:9
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Old 12-28-2008, 19:19   #10
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I thought the M-16A2 is 1/7...

I have a Colt AR15A2 with a 1/7 NATO 5.56 barrel. It's identical to the rifles I carried in the Marine Corps in the 80's and 90's (except the Marine Corps rifles were H-Bars, had 3-round burst, and I think the armorers tweaked the triggers SOP.)

I didn't pay attention to what grain were supplied back then, but I'm pretty sure it was 55 grain. And, 500 meters was not difficult to keep on target with iron sights.

I've heard the new 62 grain issued ammo has issues, but I haven't used them. I assume the 1/7 would like the heavier bullet.

Lastly, each branch has different weapons as standard, and then units can tweak quite a bit within the armory, so I don't think there is an easy answer.
Although, I obviously like to "ramble-on" about it...

SEMPER FIDELIS
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Old 12-28-2008, 19:28   #11
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My bad. I was replying to the 580 question. The 580 is 1:9 while the M16A2 is 1:7.
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Old 12-29-2008, 21:35   #12
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I think the older m-16's had 1in9 and some of the earliest had even slower twists. I believe the barrels all got swapped out for 1in7 with the adoption of the ss109 to replace... I think the m855 (?) 55 grainers.
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Old 12-29-2008, 22:05   #13
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I agree. RTFM (Read The Fine Manual)
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Old 12-29-2008, 22:24   #14
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When I posted my question I hadn't yet bought my rifle. I got it this morning along with the manual. Thanks for the replies. 1 in 9 is ok for 69 grain bullets I take it.
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Old 06-24-2009, 10:49   #15
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Gj

From Ruger Service/Tech:

Thank you for using the Ruger On-Line Customer Support Request Form.

This e-mail is in response to your question or comment of 06/24/2009
Request No: 35049

Comment / question:

I just purchased the Mini-14 above. So far I have been told by 2 salespeople and 1 gunsmith, in addition to the regular 223 round, I can fire 5.56 ammo in this rifle. Is this true and if so which 5.56 rounds can be used?

Regards,

GJ

Response:
Ruger Mini-14’s have 5.56mm chambers and are designed to use either 5.56 or .223 factory ammunition loaded to United States industry specifications except in the Target model. Also may be called 5.56 x .45.

If you need further information, please visit our website at www.ruger.com or contact us at:

Revolvers, shotguns, rifles, 10/22 Charger Pistol: (603) 865-2442
Pistols: (928) 778-6555
Serial Number History Information: (603) 865-2424

Please note: This e-mail is sent from a notification-only address that cannot accept incoming e-mail. Please do not reply to this message.

Sincerely,
Ruger Firearms
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Old 06-25-2009, 09:13   #16
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Originally Posted by totalloser View Post
I think the older m-16's had 1in9 and some of the earliest had even slower twists. I believe the barrels all got swapped out for 1in7 with the adoption of the ss109 to replace... I think the m855 (?) 55 grainers.
M855 are 62 gr. M193 are 55gr. Lots of info on this site if you look around. Lots of Minis' like mine are 1/7 (mine's a 187-XXXXX). Newer ones are 1/9. F of Reds(heads).
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Old 06-25-2009, 20:32   #17
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Originally Posted by Teapot View Post
When I posted my question I hadn't yet bought my rifle. I got it this morning along with the manual. Thanks for the replies. 1 in 9 is ok for 69 grain bullets I take it.
69 gr. is probably the heaviest that will perform reliably in 1:9 twist barrels...
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