I have owned a Cooey Model 64B for 22yrs now and was very good at giving a good clean, sometimes it jammed.......sometimes not. It was not until I fully disassembled the rifle completely and gave it an excellent cleaning and oiling that it has performed flawlessly.
Remove stock and trigger assembly and barrel lock......remove barrel from the rifle and the rest is straight forward. Get all that gum out from behind the action and your rifle should perform near new again.
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