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Posted: 3/24/2025 3:36:36 PM EDT
| I have 2 14.5 lmt uppers. the one will punch an H2 geissele combo back and feels great. the other doesnt like the H2. went down to H1 and carbine buffer and it does cycle but every few rounds itll kinda spit one out. about 3:00 with an H1 and every few or so there will be a weak/sloppy eject. tried a new bcg with it as well. almost like theres a leak but cant locate it. Gas block doesnt seem loose. key and tube match up nice and smooth. Any idea what might cause this? It aint that dirty. Any way an lmt G block is not alligned right or becoming loose? going to try to scrub it and air spray tube |
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|
Does the "weak" one lock back on a single rd loaded /fired from a mag, 100 % ? Even with weak ammo ? ( PMC Bronze ) Any visual signs of gas leakage ? Ejector functioning well ? What do the fired cases look like ? No scratches , etc from a rough chamber ? You might try swapping the bolt, between the 2. Factory ammo ? ( not reloads ) maybe one has a tighter chamber. Just thinkin' out load. |
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JAFOM.... Just another fat old man.
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TOGC,IADC
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| i will try that out on the lockback this weekend. it was happening with the same ammo types and I tried different bolts. Ill check out the ammo after but I am not seeing excessive wear on feed ramps. feed ramps look good. I will check all that out. tried to clean chamber out. not sure if Im seeing any leakage. gas block looks solid. I will check those 2 things this weekend. |
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| i tried that too. it pushed the casing right out. no feel or audio on any leakage…wierd. going to try to clean chamber out and throat as well as i can. maybe some nasty shit got in there. also going out this weekend and im going to try a different barrel in it too |
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