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Need some fellow gunsmith advice- Ruger .22/45

 
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  #1  
Old 02-14-2013, 01:11 PM
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Need some fellow gunsmith advice- Ruger .22/45

Hey, I need some advice/suggestions. One of my best customers brought me in a pistol yesterday, a Ruger MKIII .22/45 Target model pistol w/ 4" bull bbl. It is in great shape, customer bought itused and supposed to work fine. Problem is that it won't cycle. Bolt barely blows back on firing, and slams the empty case back in the chamber.
I disassembled and cleaned the entire pistol, down to the last spring, and reassembled. The chamber appears smooth, and the extractor is sharp and has plenty of tension. The ejector has a loaded chamber indicator attached to it, and Im suspecting a problem with it... anyways, it still won't fully cycle, and I've tried 3 brands of standard velocity .22 LR ammo.

I specialize in bolt rifles, AR's, and 1911's, but will undertake anything. My experience with Ruger .22 pistols is unfortunately limited to installing a new sear stop pin and spring in an old Ruger .22 standard (before they designated "Mark I, II, III).

Got any ideas? Perhaps the recoil spring is too strong? As I said, she just bought it used, so we dont know if it ever worked properly... the pistol appears to be nearly new, shot very little, Id guess less than 250 rds.
Thanx!!
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Old 02-14-2013, 02:35 PM
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Re: Need some fellow gunsmith advice- Ruger .22/45

Quick test is to try "high" velocity 40 gr. ammo. some of those can be "picky" on ammo. if it functions, look at springs.
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Old 02-14-2013, 06:06 PM
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Re: Need some fellow gunsmith advice- Ruger .22/45

Quote:
Originally Posted by MTBULLET View Post
Quick test is to try "high" velocity 40 gr. ammo. some of those can be "picky" on ammo. if it functions, look at springs.
+1 for the High Velocity ammo. I've seen lots of .22 auto pistols refuse to cycle with standard velocity ammo.
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  #4  
Old 02-14-2013, 09:25 PM
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Re: Need some fellow gunsmith advice- Ruger .22/45

Also check here:

22/45 - RimfireCentral.com Forums
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  #5  
Old 02-14-2013, 10:36 PM
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Re: Need some fellow gunsmith advice- Ruger .22/45

Go with hi velocity ammo with 40+ grain bullets.

If heavy high velocity ammo doesent do it I think you are on the right track with a to heavy
recoil spring. (It could have been changed by a want a be smith or a pilgrim.

J E CUSTOM
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Old 02-17-2013, 01:26 PM
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Re: Need some fellow gunsmith advice- Ruger .22/45

Thanks guys!! I picked up a box of CCI Mini Mag HP's, CCI Stingers, and Rem Thunderbolts. Going to test them in an hour or so.. reassembling this pain in the butt pistol; I hate putting the mainspring back into these things with their freaky dangling hammer spur and magazine disconect.
On the loaded chamber indicator, theres a small spring loaded blade on it, which seemed like it was hung up... hoping that was the problem. we'll see
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  #7  
Old 02-17-2013, 05:29 PM
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Re: Need some fellow gunsmith advice- Ruger .22/45

Is it the stainless hunter? The machining on the bolt and inside the frame can be a bit rough, which might be slowing down the bolt too much. Try looking for scuff areas and even try a little grease to see if it helps it out.
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