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My GP-100 44 will accept Magnums

This is a discussion on My GP-100 44 will accept Magnums within the Ruger Double Action forums, part of the Pistol & Revolver Forum category; I received my new GP-100 44 yesterday. So today I took it out to my workshop to clean it up. I had a bag of ...


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Old January 7th, 2017, 09:26 AM   #1
 
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My GP-100 44 will accept Magnums

I received my new GP-100 44 yesterday. So today I took it out to my workshop to clean it up. I had a bag of .44mag reloads that were sitting on the bench intended for my S&W 69. They were loaded with a 250 grain Keith style Bullet in various cases. Just out of curiousity I inserted one of the 44 mag rounds into the cylinder of the GP-100 it dropped right in with the rim flush with the cylinder extractor. I was able to do the same thing with the other four chambers, and the Cylinder rotated freely when locked up. Now I would NEVER fire a Magnum round in a Revolver that was not designed to handle the same. I will have to be very careful when handling ammo at the range not to mix them up





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Old January 7th, 2017, 09:28 AM   #2
 
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Please don't try to shoot those. It was not design for Magnum loads. Unless you are just loading the magnum cases to .44 special pressure, than won't be so bad I suppose.
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Old January 7th, 2017, 09:35 AM   #3
 
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Quote:
Originally Posted by Mulebuk Sam View Post
Unless you are just loading the magnum cases to .44 special pressure, than won't be so bad I suppose.
I have several .44mag Revolvers, and a 77/44. Too easy to make a mistake and blow up the GP or Me
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Old January 7th, 2017, 09:36 AM   #4
 
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The OP knows not to fire the magnums. He said so in his post.
I would let Ruger know about this. They don't need the trouble it could possibly cause.
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Old January 7th, 2017, 09:39 AM   #5
 
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If you can fit a store-bought 44 Magnum round into the cylinder, you need to call Ruger immediately and get it fixed.
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Old January 7th, 2017, 09:39 AM   #6
 
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@Nipperdog,

I just bought a new LCR .357 magnum and I'm trying to shoot more magnums out of it than the .38 specials because I don't want get that chamber ring going to bad because it's hard to clean, it's the shorter case length and the un-burnt powder left behind.

p.s. before you call Ruger can you close the cylinder ?
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Old January 7th, 2017, 09:54 AM   #7
 
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He said the cylinder rotated freely when locked up. So yeah, that's potentially dangerous. Somebody is bound to blow up one of these guns.
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Old January 7th, 2017, 09:57 AM   #8
 
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Freely open or freely closed ? Better to look like an idiot here than over at Ruger.
As long as he can't closed that cylinder that's the way the gun was design.

Next rant..
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Old January 7th, 2017, 10:02 AM   #9
 
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Originally Posted by Mulebuk Sam View Post
Freely open or freely closed ? Better to look like an idiot here than over at Ruger.
As long as he can't closed that cylinder that's the way the gun was design.

Next rant..
Of Course with the Cylinder Closed
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Old January 7th, 2017, 10:03 AM   #10
 
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Interesting.
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Old January 7th, 2017, 10:16 AM   #11
 
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Not surprised.......one of my 44 special Blackhawks is cut a tad deep. Mags will slide right in it. We are talking about just a tint bit here anyway. Problem may be more common than we know. Wonder how many have TRIED a mag in their specials to see if it will chamber

I have two 44 specials. One a stainless and one blue. Mags WILL chamber in the blue and only like a few thousandths of doing it in stainless one

Last edited by msp3903; January 7th, 2017 at 10:24 AM.
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Old January 7th, 2017, 10:17 AM   #12
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Hmmmm......that doesn't seem right. My experience with 357 vs 38 leads me to think the wrong finishing reamer was used in your cylinder. I've never messed with 44 Mag vs 44 Special but I read that a 44 mag case length is 1.285 and 44 Special is 1.16. Aren't the chambers in your new GP100 are supposed to be too short for a 44 Mag to seat fully?

Unless I'm mistaken a call to Ruger ASAP is in order.

44 Special max pressure 15,500
44 Mag max pressure 36,000

Seems safe to say a 44 Mag will be well above proof loads.

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Old January 7th, 2017, 10:33 AM   #13
 
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Nipperdog I guess what I would suggest is to slip a brand new .44 Magnum shell into your GP100-.44 Special & see what happens! My guess is a foul up with the machining process that Waveform has brought up. If your gun handles & shoots the .44 Special's ok I guess it's your call whether to send your revolver into Ruger. I do feel it would be a good thing to call Ruger & get things started. Good luck, this is the 2nd issue I have read here on the Ruger Forum about GP100-.44Spec. Potential problems. Nipperdog good luck to you!!!
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Old January 7th, 2017, 10:36 AM   #14
 
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I wouldn't recommend it but a .44Mag is not going to blow that gun to pieces.
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Old January 7th, 2017, 10:39 AM   #15
 
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It's going to shoot just fine. Both mine do. No difference than shooting specials in a regular 44 mag. 38s in a 357 or 45 in a Casull chamber. The issue will be if some idiot loads his up with hot magnum rounds constantly.............but you can't fix stupid

And like Craig said, it likely won't blow the gun up anyway, but a steady diet of them won't do it any favors either. A Skeeter load special is pretty durn hot and you know it will handle that, so magnums won't make it shrapnel on the first try

Last edited by msp3903; January 7th, 2017 at 10:43 AM.
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