617 DA trouble

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Mar 24, 2012
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I have a 617 and whehn firing DA a couple of the rounds seem to take more pressure...almost like it's sticking, to fire. dry firing is fine but with actual rounds it shows up. i cleaned it really well and seemed better for a very short time and came back.
Any ideas? Thx
 
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What brand of ammo are you shooting? I use the Federal copper dipped that comes in the bulk pack in my 617 (4000+ rounds so far) with no problems. .22 lr is a dirty round. The first thing I'd try is different ammo.
 
I had a Model 34 that did that. It turned out to be powder flakes under the extractor star. It only takes a couple. Next time it happens clean under the star with a toothbrush and see it that helps.
 
i am using the federal bulk but have tried different ammo as well. it didn't make a difference.
i cleaned it really well, removed the cylinder and scrubbed it. i think i'll drop it in the ultrasonic cleaner for half an hour and REALLY clean it well
thx.
 
Check the chambers for lead or powder fouling as well. If one or two chambers resist full insertion of a cartridge, the case head siting a bit proud of the cylinder can have the effect you mention. I'd bet this turns out to be a cleaning issue of some kind.

I wouldn't dry fire a rimfire revolver much without snap caps or spent cases under the firing pin.
 
Check the chambers for lead or powder fouling as well. If one or two chambers resist full insertion of a cartridge, the case head siting a bit proud of the cylinder can have the effect you mention. I'd bet this turns out to be a cleaning issue of some kind.

I wouldn't dry fire a rimfire revolver much without snap caps or spent cases under the firing pin.

Yes. Same problem/solution for my 63 and 617. To clean the chambers I put a small amount of Flitz on a patch and run it back and forth until black. Do that several times, then with a clean patch to buff. The cartridges should drop cleanly into and out of the chambers w/o sticking. If you're at the range and this happens, try carrying some Q Tips. Dab them in CLP and use them to clean the chambers and star. As to dry firing, S&W says that's a no-no with .22 revolvers. I don't do it even with spent casings inserted in the chambers.
 
Had the same problem with a squeeky clean 34. The solution was "none of the above". What was happening when viewed from the side was the locking bolt was sluggish and not retracting. A drop of M-PRO7 on the locking bolt cured the problem.
 
I have had more than 10,000 rounds throug my S&W617. All I use is a bronze brush to clean the chambers. After 300 rounds you have to clean under the extractor star and the recoil shield, etc. 22RF ammo is notoriously dirty upon firing - some brands a bit more than others.
 
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