The Original CZ Forum
CZ PISTOL CLUBS => Compact CZ 75s => Topic started by: Velocette on November 17, 2021, 06:07:46 PM
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75D PCR, After about 800 flawless rounds, I had a failure to eject, then at about 950 had another. Fired case stuck in ejection port blocking new round.
I always clean the pistol after a range session, so I started looking for causes. Read that detritus could build up under the extractor & cause this problem.
SO, I drifted out the extractor pin & cleaned the extractor channel, spring area and the extractor. What I found was a buildup of black carbon and bullet lube from the lubricated lead bullet reloads I used. Most interesting was the buildup inside the hook that engages the rounds case. there was a significant amount there that clearly would keep the extractor hook from fully engaging the case rim. I also deburred all sharp outside edges of the extractor, smoothed both sides of it and re-installed it.
Pistol is now back to its normal flawless operation.
Worthy of note, if lubricated lead bullets are used, check the extractor hook for buildup. AND as I have done, move on to Hi Tech coated lead bullets in addition to the jacketed hollow points I practice with.
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Well yes if you are shooting cast slugs with lubed bullets extra cleaning is needed after each session. Shot ALOT of home cast bullets over the years and never had an issue with build up. I scrub the extractor area well with a small stiff brush after each outing and I have over 22,000 rnds in my oldest PCR and it's never choked.
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Appreciate the post and info. That’s a useful consideration for using cast bullets (never used them myself).
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Thanks for posting.