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SR22 takedown latch opens by itself

This is a discussion on SR22 takedown latch opens by itself within the Ruger Rimfires forums, part of the Pistol & Revolver Forum category; I really hate to read this thread after just purchasing an SR22, I'm all sorts of paranoid now....


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Old February 25th, 2012, 03:18 PM   #16
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I really hate to read this thread after just purchasing an SR22, I'm all sorts of paranoid now.



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Old February 25th, 2012, 05:12 PM   #17
 
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I started this thread, mine only had 40 rounds through it when the take down latch failed. Yes it looks deteriorated as if something is hittting it. I sent it to Ruger today.
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Old February 25th, 2012, 06:08 PM   #18
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1700 rounds thru mine and no problems. Eats any ammo.

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Old February 25th, 2012, 07:15 PM   #19
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My gun had less than 200 rounds through it.

Last edited by RUT; February 25th, 2012 at 07:38 PM.
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Old February 28th, 2012, 05:06 AM   #20
 
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Here's my theory as to what might be happening here:

I've examined my own SR22P and have come up with a possible theory as to what MIGHT be happening here (this might not necessarily be what caused yours to fail - but it is just one more possibility):

As I see it, the take down lever was made from plastic to serve a 'second' purpose as a softer-than-aluminum 'buffer' to absorb enough shock to prevent aluminum-to-aluminum battering.

The slide is made of aluminum, and the inner frame is also aluminum. - When you close the take-down lever tight against the frame it interposes itself between these aluminum surfaces and absorbs enough shock to prevent the two aluminum surfaces from "peening", which would be really serious permanent damage! (This would, therefore, be the reason that ruger did not make the take down lever out of metal).

Now my theory: If the lever is ever not seated completely up into the closed position, there would be significantly less surface area to absorb the shock and would therefore tend to shear away the plastic with each shot!

Even one time of incomplete seating would be enough to round off the top edge of the take down lever's surface and begin to tear it up after that - (even if the lever is securely snapped upward into place after that one time!!)

As I said, that is strictly a theory I have come up with after I examined my own SR22P (which has about 300-400 rounds through it and shows maybe less than .001" of surface depression into the plastic showing the contour of the slide striking it). I have always had the take down latch well seated when firing so far, but I can see that if it had been ajar somewhat (even once!), there could have been some damage by now due to very little surface area being available to catch the slide impact.

Just wanted to add this "Theory" for all here to consider.

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Old February 28th, 2012, 05:08 AM   #21
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The long and the short of it is it's a faulty design.
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Old February 28th, 2012, 05:14 AM   #22
 
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Quote:
Originally Posted by RonJon View Post
I've examined my own SR22P and have come up with a possible theory as to what MIGHT be happening here (this might not necessarily be what caused yours to fail - but it is just one more possibility):

...

Even one time of incomplete seating would be enough to round off the top edge of the take down lever's surface and begin to tear it up after that - (even if the lever is securely snapped upward into place after that one time!!)

.....

RonJon
Not a bad theory. To put in into practice, before firing we want to make sure that the take-down latch is fully seated in the closed position. I can do that.

About 600 rounds through my SR22 with no problems so far.
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Old February 28th, 2012, 11:51 AM   #23
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>>before firing we want to make sure that the take-down latch is fully seated in the closed position. I can do that.<<

Sorry, but having to keep one's eye on this lever at all times is unacceptable, and I'll bet Ruger engineers are tripping over themselves in an attempt to correct this problem ASAP.
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Old February 28th, 2012, 02:16 PM   #24
 
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I just picked up a SR22P yesterday and put 100 rounds though it with no problem. Last night I went to clean it and had a devil of a time even getting the take-down lever to release. Had to rack it several times, safety on and off several times. Finally it let go. Then after I put it all back together, the same thing, I couldn't get it to release again. It's very tight and solid. We'll see what happens tomorrow, I'm hoping to put another couple hundred through it.

I am curious though, as it looks like Ruger may have already done a revision on this pistol. All of the other SR22P's that I have seen has "SR22PISTOL" engraved on it, mine just has "SR22". I would like to know if the ones that have failed have "PISTOL" engraved on them or not.
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Old February 28th, 2012, 02:21 PM   #25
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THIS is why I'm waiting. Ive already saved myself from having PISTOL printed on the side.
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Old February 28th, 2012, 03:00 PM   #26
 
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I frequent a 1911Forum that discusses recoil spring weakening with number of shots. Agreement is generally shared that recoil springs should be changed after firing 1000 to 3000 rounds. In addition to increasing malfunctions there is also an increase in battering of the receiver and other parts increasing wear. Since springs are relatively inexpensive, 1911 shooters assert they should be changed frequently in semi-autos. This should likely be the case here and including the SR22pistol.

I have no idea how many rounds Ruger tested in their new design 22 particularly with the tab fully snapped closed or slightly open; but, with a 1k, 2k, 3k, 4k round test combined with weakened recoil spring may push the design beyond its capability without some damage to components.
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Old February 29th, 2012, 08:28 AM   #27
 
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I have around 1500 rounds through my SR22"PISTOL" (probably 500 of that is hypervelocity - CCI Stinger Rem Viper) and have noticed no wear whatsoever on the take down lever stop yet. Mine locks up nice and tight though. I can see that if the lever was loose and came down a little how it might get chewed up. Good heads up though. Something I'll check more regularly.
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Old February 29th, 2012, 06:42 PM   #28
 
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I bought a SR22 mostly just for fun. So far no problems, but I haven't shot it alot. I agree that having to change recoil springs every 1-2 thousand rounds is unacceptable. Of course I have been used to shooting Ruger MKII's etc for many many years, and you just can't break them. It will be interesting to see how this plays out, but I'm confident that Ruger will resolve the issue.
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Old March 8th, 2012, 06:27 AM   #29
 
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Check out my post #4 at another thread on this site:

Wearing on takedown lever - SR22

(See post #4 by me - RonJon) It's probably more pertinent here.
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Old March 8th, 2012, 10:39 AM   #30
 
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I do like the thought of one being out now without the 'PISTOL' on the slide, I didn't care for that at all.
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