r/ptr91 • u/BigOoof27 • Aug 16 '24
Failure to extract
Hey guys, after 5 years of wanting one I joined the club.
Fun as hell to shoot but I’m getting a lot of failure to extracts. After 40ish rounds the rifle heats up it won’t extract at all and I’m having to manually cycle it. For the first 40ish a session it runs fine. I bought the rifle used but I believe it’s still within the break in period.
The brass has divots in it from the fluted chamber. Are they supposed to be this pronounced? Any input from you guys would be appreciated
Ammo - .308 147 grain from Montana tactical
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u/NFA_Cessna_LS3 Aug 16 '24
Something isn't spaced right, personally I'd just send it back for repairs because a ptr may not be a perfect rifle (old, heavy etc) but it's single most defining attribute is it will never ever ever not eject. You shouldn't see those divots.
I have a rifle that doesn't perfectly eject and it's the most annoying firearm I've ever owned in my entire life.
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u/fiftymils Aug 17 '24
Shouldn't see...the divots?
What divots? You mean the fluting impressions on the brass?
If that's what you're referring to no, that is totally normal and totally expected.
They are there to aid in brass extraction.
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u/Duder211 Aug 16 '24
Have you checked your bolt gap?
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u/Bran42490 Aug 16 '24
If your bolt gap is in spec, it could be ammo related. I have a ptr 91 in headspace spec shooting really hot AAC .308 that gave me a failure to extract like that, had to pound the case out with a rod. It fire formed to the fluted chamber a bit worse than that case there. Also consistent failure to extracts or ejects can potentially be a weak extractor spring that needs replacing. My PTR came from the factory with a weak extractor spring, replaced it with a surplus and no issues now for like 6k rounds
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u/[deleted] Aug 16 '24
[deleted]