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S&W Revolvers: 1961 to 1980 3-Screw PINNED Barrel SWING-OUT Cylinder Hand Ejectors WITH Model Numbers


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  #1  
Old 11-06-2010, 08:47 PM
corgiS&W corgiS&W is offline
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Default Spent cartridge tight in cylinder

I shot 50 rounds in my mod 67 today, and one cylinder held the empty cartridge too tight. I had to pull it out with my fingers. It's been a year since I shot the gun but I don't recall this happening before. I picked up another empty case and it was also tight in this hole. Might it just be a tad smaller and the range's reloads expanding more than a new cartridge? What's the best course of action?

Last edited by corgiS&W; 11-07-2010 at 12:21 AM. Reason: what made me say 65?
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  #2  
Old 11-06-2010, 09:16 PM
gbrady gbrady is offline
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Scrub each cyl with a brass brush and a solvent, there might be some burnt powder left in the cyl.
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Old 11-06-2010, 09:35 PM
corgiS&W corgiS&W is offline
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Originally Posted by gbrady View Post
Scrub each cyl with a brass brush and a solvent, there might be some burnt powder left in the cyl.
Thanks for the suggestion. You may well be right. I will try that and report back. I just measured them with a vernier caliper and all seem be 0.379 +/- 0.002 in.
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Old 11-07-2010, 04:02 AM
k22fan k22fan is offline
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corgiS&W,

After you've got it good & clean look carefully in the offending charge hole for a dimple under the locking notch. If an over pressure reload pressed the bottom on the locking notch outward, subsequent cartridge cases at +P pressure will take the shape of the dimple resulting in stiff extraction. I hope cleaning alone restores easy extraction but I have not experienced a single charge hole fouling that much differently than the other five. Did you notice a louder or heavier recoiling cartridge just before the problem started?

Best Regards,
Gil
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Old 11-07-2010, 07:37 AM
Dan Cash Dan Cash is offline
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Your problem sounds like a bit of residue in the chamber. If you are pushing the cartridge out far enough to grasp with your fingers, you cylinder is not dimpled under the locking notch.
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Old 11-07-2010, 02:49 PM
bountyhunter bountyhunter is offline
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Use a nylon bore brush with a strip of scotchbrite pad wrapped tight around it with a hand drill to polish out the cylinder tubes.
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Old 11-07-2010, 05:20 PM
k22fan k22fan is offline
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Quote:
Originally Posted by Dan Cash
Your problem sounds like a bit of residue in the chamber. If you are pushing the cartridge out far enough to grasp with your fingers, you cylinder is not dimpled under the locking notch.
Good point. I was interpreting his words to mean slip his fingernails under the rims to pull them out.

Gil
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Old 11-07-2010, 05:56 PM
corgiS&W corgiS&W is offline
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Originally Posted by bountyhunter View Post
Use a nylon bore brush with a strip of scotchbrite pad wrapped tight around it with a hand drill to polish out the cylinder tubes.
I cleaned all the bores with a copper/nylon brush and solvent, and even used a .40 caliber brush. Still had the tightness but noticed some longitudinal and circumferential scratches on the empty casing, so I used spray adhesive to attach some 1500 grit silicon carbide paper, that I use for honing chisel blades, to a 0.367" diameter pin and carefully polished the bore. That fixed the problem.

Maybe one of the casings had a rough edge and when it expanded it scratched the bore when I extracted it and then continued to hinder extraction.

Thanks for all the suggestions; without them I'd probably have paid somebody big bucks to do the same thing.
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cartridge, fouling, scotchbrite, solvent

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