Ruger M77 7.62x39 Stainless

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bluetopper

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I need opinions.
I have a very good friend who has one but one of his reloads blew the magazine out of it and the mag has to be replaced. The bolt will not open under hand force, and has not been opened yet so I do not know to what extend the damage is.
However he told me he will let me have it as is for $100.....should I take a chance on it?
 
offer 75? Can't buy quality art for 75 ;) Sounds like the receiver maybe smoked, I dunno though someone here will know the damage possibilities.
 
i have one and it must have been a hell of a reload to blow it. sounds like he lost a case head and gas blew the mag out. for a 100.00 i would take a chance on it. you could get lucky and only have to replace the magizing parts, i would tap the bolt handle with a wooden hammer handle to try and get it open,if it opens have the bolt head and chamber checked. good luck. eastbank.
 
What magazine? I think you mean the magazine well and floor plate.

M
 
i would take a chance on it or sure. I bought a Remington 700 270 in similar condition that a guy did the same thing. I had to put the the receiver in a jig and run a boring bit through it to get the bolt out. only thing that was salvageable was the receiver, magazine/bottom metal and stock. barrel and bolt were toast. but still hard to beat for a $100. though I did have the tools to get it apart, if you had to pay someone it might not have been worth it. mine would not come apart yours might. good luck
 
i just wonder what cosed the blow up, the 77 ruger is a very strong action.i don,t shoot mine very much and when i did i didn,t load over what the loading manuals printed. eastbank.
 

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i just wonder what cosed the blow up, the 77 ruger is a very strong action

No matter how strong the action, the brass itself is going to fail at around 75,000psi. Once that happens high pressure gas can get where it ain't supposed to.

Gross overcharge or pistol powder will do it.

For $100 I'd try it. It's bound to be amusing to tear it down and see what the actual damage is.

BSW
 
I bought the rifle for $100. It took some careful effort with a pipe wrench to open the bolt, it was seized up good. This is a pic of the culprit. The brass blew out where the bolt was unsupported where the ejector slides up in the bolt face when the bolt fully opens. Whether it was bad brass or an over charged reload, I don't know.

The extractor band broke in half and as far as I can tell that's all the damage I see......a $3 part plus shipping...$11 total.
 

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You're one lucky dude!

I'd love to have a 77 in that caliber. Glad you'll be able to fix yours. Congrat's on a great buy and good luck with the repair!
 
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That is a cool gun. And eastbank, as always, never fails to impress with more great pictures of great guns. Thanks, east, always.

I'm only posting to say I've a CZ 527 in X 39 and was thinking about starting the reloading aspect of my shooting hobby... for the first time with this cartridge. I've saved my brass, although half of it may not be usable due to the Berdan primers? used in this Yugoslav mil surp ammo I've used in the past.

Good question about the bore diameter... I gotta find out what size bullets I should be using if I proceed.



Anyway...

Oh, and my .308 Win Ruger Scout has the same M77 Mk II action. Whee.


:)
 
The CZ 527 should be .311 or .310 bore. It is made for real 7.62x39, while Ruger uses .308 barrels. At least they did early on in the bolt gun. Mini 30 is also mostly .308 bore. There are a few exceptions though with mini 30s. In a bolt gun it doesn't matter as much with cheap ammo but for hand loading check with the manufacturer depending on brand. If you're gonna hand load it might as well be as accurate as possible.
 
If you're gonna hand load it might as well be as accurate as possible.

Absolutely. Why shoot, otherwise. :D :)

But, seriously... thanks for the prompt reply to the question. Now then: if shooting anything other than "real" as you alluded to, that uses bullets +/- .002" smaller than the CZ's bore, I understand that jacketed lead pills will "slug up" to the bore size. Is this the case in your experience?

And even more off-topic to the OP, what is your take on the latest lead-free ammunition that uses copper bullets? Will they slug up to bore size if, say, used in a Marlin microgroove or even a Miroku Browning barrel? calibers .357 and .44

Thanks!
 
The info I've read on the bore size issue and the reloads fired in the past(308 jacketed bullet in 311 bore) lead me to believe it doesn't matter for function, but it can take accuracy down a notch. I tested this out in a old enfield shooting 308 projectiles. Brought the group size up about an inch in 100 yds. Still fine for hunting but not great for targets at long range. The CZ 527 is the next one I am going to test, but I can't find a used rifle so I may be ordering a new one here in the next few weeks.
 
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I see new 527 Carbines from time to time at my lgs. If you get antsy after looking for one in your neck of the woods, you might give them a call. M. B. Retting, Culver City, CA (310) 837-2412

Thanks for your replies.

:)
 
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