Posted: 9/23/2012 8:19:07 PM EDT
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Got a brand new ruger mark iii this last week and took it out this weekend. This is my second mark iii from the same distributor and I noticed one thing instantly. My first mark came with a black trigger. My new one came with what appears to be a stainless trigger. Not sure if this is normal or not but I have noticed a problem with the new one. Once fired, the trigger does not reset every time. Happens about once every 25 shots or so. I havent done any aftermarket work on this new ruger yet but wanted to see if anyone had any recommendations other than sending back to Ruger. I polished all the contact points on my older mark so I'll be planning on doing the same thing to this one. I polished the trigger bar, sear, hammer and plunger on the old one to relieve some of the trigger pull. Anything I can try to do to fix this reset problem?
Also, I'm fairly new with the mark iii so any recommendations on other mods to do on it? I've only owned my older one for a few weeks more then the second one so I've not got a GREAT deal of knowledge on them. All of my 22 knowledge is with the 10/22. |
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Your reset issue is likely either a result of the trigger not moving far enough forward, or the trigger spring plunger not pushing the disconnector assembly up to where it can reengage the sear. You might want to be looking at your exploded manual diagram for the next couple of sentences... After the gun is fired, the disconnector assembly (39) is recessed in the slot on the right side of the sear (42). When the trigger moves forward, it pivots and pushes the disconnector assembly back. Once the tab on the disconnector assembly clears the slot in the sear, the trigger spring plunger (29) pushes up on the disconnector assembly and it moves up so that it can engage the sear. This motion is the "click" that you hear when the trigger resets.
Since you have not modified your gun, you probably have a warranty claim. If you're up to some DIY investigation I would check to make sure there are not any burs or rough surfaces on the parts that I mentioned that might cause them to get hung up. Another factor in the resetting of the trigger components is the stacking up of the tolerances, or trigger slop. The hammer assembly (36) rotates around the hammer bushing (40) which in turn rotates around the hammer pivot pin (44). Since there is clearances between all three parts, it is possible for the hammer to engage the sear, which itself has a rotational clearance on sear pivot pin (49), in slightly different places from shot to shot. This inconsistency could explain why your reset works a majority of the time but not always. The magazine disconnector (38) and disconnector spring (37) could also be adding friction and interfering with the motion of the trigger just because they are present on the moving parts, but they are not actively involved in the reset from shot to shot unless you remove the magazine. You can remove a bunch of this slop with an aftermarket hammer bushing, which is a mod I'm somewhat partial to  , but an unmodified gun should definitely be more reliable so I'd look into possible interferences or get in touch with Ruger before making modifications. Once you modify the gun you reduce your claim to a warranty. Ruger will still fix it for you, but they'll replace aftermarket parts with factory parts, charge for their parts, and not return your aftermarket pieces. If I were to modify a gun (and I almost always do) I'd definitely want to start with a working platform.
Good luck! |
I'm assuming you cleaned it first? The NIB 22/45 I recently picked up had slivers of metal and other crud in it.  Since you say you polished the other one you know they're actually pretty simple to take completely down, just a PITA to put back together. I'd pull it down and follow bam's advice.
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I broke it all down and polished up the contact points. Have not had it back out since doing this but the action does seem smoother already compared to when I first got it. Brought it down to about 3.5 on the trigger pull. But, again, I have not been able to verify the reset issue is fixed. It resets every time after dry fire but not necessarily meaning it will under normal operation.
Pepper, it does not have a target trigger so no t does not have a set screw. It did however come from th factory with a stainless steel trigger (or at lease it looks stainless). My other mark three that was purchased from the same dealer came with the normal black trigger. Is it common for ruger to ship with either trigger? |
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Coyotehawk,
Not sure on the trigger. Mine has a stainless trigger and it performs flawlessly. As for mods I would reccomend the MarkIII 22/45 magazine disconnect from TANDEMKROSS. It cleaned up my fail to feed issues and my mags pop right out now. The funny thing is I mostly appreciate the fact that I dont need the stupid magazine anymore to clean/teardown the firearm. - korso |
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Quoted:
Coyotehawk, Not sure on the trigger. Mine has a stainless trigger and it performs flawlessly. As for mods I would reccomend the MarkIII 22/45 magazine disconnect from TANDEMKROSS. It cleaned up my fail to feed issues and my mags pop right out now. The funny thing is I mostly appreciate the fact that I dont need the stupid magazine anymore to clean/teardown the firearm. - korso I picked up one of those on amazon the other week because it was the only one I could get on short notice. Should have gotten a VQ. Steel (i assume) with dents in it when it arrived, along with small machine marks I polished out. It functions, but for the price, I should just have waited on a known quality part. |
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Quoted:
Quoted:
Coyotehawk, Not sure on the trigger. Mine has a stainless trigger and it performs flawlessly. As for mods I would reccomend the MarkIII 22/45 magazine disconnect from TANDEMKROSS. It cleaned up my fail to feed issues and my mags pop right out now. The funny thing is I mostly appreciate the fact that I dont need the stupid magazine anymore to clean/teardown the firearm. - korso I picked up one of those on amazon the other week because it was the only one I could get on short notice. Should have gotten a VQ. Steel (i assume) with dents in it when it arrived, along with small machine marks I polished out. It functions, but for the price, I should just have waited on a known quality part. This one ships just as fast (same day for orders placed before 4:15) and is made from stainless steel. |
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They offer both an aluminum (at a lower cost) and steel on their website. Apparently there's a lifetime guarantee on both. My friend ordered the aluminum and decided he wanted steel instead. He said the customer service was awesome and they paid shipping both ways and exchanged it at no cost to him. FYI, I ordered steel and my bushing was a perfect fit with no dents at all. Quoted:
Quoted:
Coyotehawk, Not sure on the trigger. Mine has a stainless trigger and it performs flawlessly. As for mods I would reccomend the MarkIII 22/45 magazine disconnect from TANDEMKROSS. It cleaned up my fail to feed issues and my mags pop right out now. The funny thing is I mostly appreciate the fact that I dont need the stupid magazine anymore to clean/teardown the firearm. - korso I picked up one of those on amazon the other week because it was the only one I could get on short notice. Should have gotten a VQ. Steel (i assume) with dents in it when it arrived, along with small machine marks I polished out. It functions, but for the price, I should just have waited on a known quality part. |