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Failure to Fire in MK III

This is a discussion on Failure to Fire in MK III within the Ruger Rimfires forums, part of the Pistol & Revolver Forum category; A couple days ago at the range I ended up getting quite a few failures to fire. Each time that happened I'd pull the bolt ...


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Old September 16th, 2011, 05:06 PM   #1
 
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Failure to Fire in MK III

A couple days ago at the range I ended up getting quite a few failures to fire. Each time that happened I'd pull the bolt back and drop out a cartridge that had clearly been hit by the firing pin. (Probably should have looked more closely at just how well it had been hit, though looked OK upon casual observation.) In every case the cartridge did fire when I put it in the next magazine and ran it through a 2nd time.

I know it can't be an ammo issue as the problem started right way while I was still using up a partial bulk pack that had performed without a single problem one week prior. I started another bulk pack and the problem continued. This gun & the Federal bulk I was using had never before been prone to this problem. I might have had 1 failure to fire in every few thousand rounds before.

I saved some some of my spent casings to examine later at home and the firing pin marks look the same to me as what I've always seen before.

Perhaps the gun was just getting too dirty? Random chance? The prior visit I'd fired about 500 rounds. I didn't strip it, since it simply doesn't seem dirty enough after that amount to justify the effort. I ran a bore snake with through it with bore cleaner and used cotton swabs with bore cleaner to clean all I could through the ejection port.

How often do all of you clean your Ruger .22 pistols? After ever use? After a certain number or rounds?

I think I've finally mastered the art of stripping & reassembly of this design that can be truly frustrating to those who aren't used to it, but would still prefer not to strip it each time if not needed.



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Old September 16th, 2011, 05:12 PM   #2
 
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I would imagine after you cleaned it, the problem should be eliminated.
When I first bought mine I was told it didn't need cleaning everytime.
I always did clean mine everytime and have never had one failure of any description, whereas the guys that said not to clean it regularly seem to have all the problems.
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Old September 16th, 2011, 05:13 PM   #3
 
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I clean my Marks after every range trip. Sounds like bad ammo.
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Old September 16th, 2011, 05:36 PM   #4
 
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If the failure to fires are caused by light strikes then you would want to take the firing pin out of the bolt and clean the bolt. At the least you should spray some Rem Oil over the top of the bolt while it is still in the gun and continue firing to see if that improves the situation.
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Old September 16th, 2011, 10:02 PM   #5
 
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I clean it every trip. Or every month if i dont shoot it. I wouldnt squirt any large amounts of oil into the bolt area spring or firing pin channel. It will collect more dirt if its not a dry lube. Take it down clean it see if it happens again.
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Old September 16th, 2011, 10:07 PM   #6
 
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i would have to agree with the bad ammo try another band of ammo. I have had mine foor over 30 years now, and the only time it failed to fire was bad ammo. Stringer ammo works the best for me.
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Old September 17th, 2011, 06:24 AM   #7
 
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I like to be able to eat off of my guns so I clean after every trip to the range and once a month to avoid gum from petroleum-based lubes. Guns I might need in a pinch get cleaned once a week.

I don't see a lot of crud on my Mark III's bolt. If there is any there it doesn't get to stay there long even if I am on the range. You might have had some light strikes from dirt in the works but my bet is also on the ammo. Primer coverage is not always perfect.
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Old September 17th, 2011, 06:34 AM   #8
 
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I've used Fed Auto Match for over two years and had MAYBE three FTF is 2000+ rounds. It IS possible to get a bad batch - though unlikely. I was taught to clean my guns thoroughly as soon as I returned from shooting/hunting and occasionally in the field. Still, if the problem persists with another quality brand of ammo, I'd take it to a good smith or contact Ruger customer service. Hang in there - it's a solvable problem.
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Old September 17th, 2011, 04:02 PM   #9
 
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Thanks guys. I'll give it a good cleaning as I'd planned to and hopefully that's all it takes.

I was very pleased with how it performed perfectly the prior week -- which was after it had been apart and was cleaned till pristine, so it seems to enjoy being clean.

I'd have thought bad ammo too, but a number of factors strongly suggest it's not ammo:

1. The problem existed while using up a couple hundred rounds from a 525 bulk pack that had performed flawlessly 7 days prior. Hard to imagine that I managed to find hundreds of good rounds in that box on the 7th, yet on the 14th what remainder just happened to contain a ton of duds.

2. Another bulk pack (different lot number) provided the same FTF performance.

3. Also tried a 50 pack of Winchester Wild Cat that I just happened to have with me to see how that would work.

4. It's consumed 15 Federal bulk packs over the year I've had it without problem, which is why I continue to use them. They've work well before and they're cheap.
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Old September 17th, 2011, 04:09 PM   #10
 
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Quote:
Originally Posted by James6591 View Post
When I first bought mine I was told it didn't need cleaning everytime.
I always did clean mine everytime and have never had one failure of any description, whereas the guys that said not to clean it regularly seem to have all the problems.
I was sort of experimenting with how often to clean it. Obviously, one doesn't want to waste time & effort on unneeded obsessive cleaning.

On the other hand, one also doesn't want malfunctions due to dirt. So I was trying to find what the optimal amount of cleaning was.
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Old September 17th, 2011, 06:02 PM   #11
 
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Reload a FTF round manually into the chamber with the dent on the bottom. If it goes bang, its time to clean.
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Old September 17th, 2011, 07:36 PM   #12
 
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My MK-lll I clean every 1,000 rounds,and dont dis-assemble it fully Just brush ,run the barrel and it works every time.
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Old September 18th, 2011, 12:59 PM   #13
 
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Well, I cleaned it last night & I think I solved the problem.

I removed the firing pin from the bolt and it was plenty dirty down in there.
Like all gun makers, Ruger warns not to do any more than the field stripping process shown in their manual. I'm not exactly sure how you're supposed to clean the firing pin and the absolutely filthy groove it slides in without removing it though. Run to a gunsmith?

I was quite hesitant to take out the firing pin given my total lack of mechanical skills. Though I found it's actually quite easy to push the firing pin stop pin to one side, lift out the firing pin, clean it & all the area that is then revealed. Then simply stick it back in. It seems to me that filth will inevitably collect in that hidden area over time and there's no way to clean it without taking apart the bolt.

I know how dirt sticks to oil (as mentioned by some replies above) and am quite conservative with the use of oil. I'd consider my bottle of Rem Oil to be more than a lifetime supply. Of course, anyone who's bought a new Ruger knows they come soaked with so much oil you might think it was deep fried.

To test function I dry fired it a couple times with empty casings in the chamber. The firing pin seemed to leave quite an impression on their rims, a firing pin mark that appeared even more robust than the orginal hit that had fired them.

I'm hoping it whacks rims of live ammo with the same vigor on my next range visit.
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Old September 18th, 2011, 01:12 PM   #14
 
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Quote:
Originally Posted by viking78 View Post
Reload a FTF round manually into the chamber with the dent on the bottom. If it goes bang, its time to clean.
I just put each FTF round into the next magazine and every one fired on the second try.

If this happens again I'll be sure to try putting it in manually to be hit 180 degrees opposite the orginal hit. I gather your idea is to try as far away as possible from the spot that might be a defective primer.
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Old September 18th, 2011, 01:27 PM   #15
 
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Quote:
Originally Posted by Marine Division Two View Post
My MK-lll I clean every 1,000 rounds,and dont dis-assemble it fully Just brush ,run the barrel and it works every time.
Does that mean you disassemble it partially?

Cleaning the bore is never a problem. It's the cleanest part of the gun and a bore snake can do the job nearly as well as stripping and using a rod.

I've found it quite surprising how very little dirt a .22 leaves in the bore. Totally unlike CF handguns where you can end up with a total mess and a whole pile of black patches, wondering how many times you'll have to shove a rod through before finally getting a patch that's even close to clean.
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