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Old 10-17-2020, 08:21 PM
Ontarget58

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Bolt sliding out



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CZ 455 bolt sliding out the back of the action every few cycles. Is it wear and tear? Or has it to do with a lighter trigger spring installed? Anyone else have encountered this?
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Old 10-17-2020, 08:29 PM
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I did with my 455 evolution that had too light a spring. I removed the spring and stretched it a bit and it quit dropping the bolt and increased the trigger pull just slightly. You might have to go with a heavier spring but that worked for me. Good luck.
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Old 10-18-2020, 02:38 AM
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Sounds like the bolt is jumping over the sear on occasion. Probably need to increase trigger weight. I think RMS1 is correct.
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Old 10-18-2020, 04:02 AM
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Old 10-18-2020, 05:26 AM
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If you left the adjusting nut in place when you installed the lighter spring you may be able to adjust it enough to stop it, otherwise a slightly heavier spring should do the trick. I keep compression sprints 159-A thru 162-A on hand, usually 161-A is light enough for most folks. 159-A for me is a bench gun only spring. JME
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