Has anyone seen this issue with PWS? I haven't and I have about 2500 rounds through my MK116.
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Has anyone seen this issue with PWS? I haven't and I have about 2500 rounds through my MK116.
"If man does his best what else is there?"
- George S. Patton
Ive never experienced this with my piston gun (LWRC 6.8) Even if I did, Id shoot it until the buffer tube was worn through then Id replace it, 5 minute job.
Last edited by Turnkey11; 08-26-11 at 16:05.
Long stroke systems are definitely going to be a different ball game compared to short stroke systems, On a long stroke the moment is absorbed slightly by the connection of the op rod to the carrier, for example if it was the same as the short stroke style systems but the op rod was a rigid attachment to the carrier, at that attachment point it would fight the moment aforementioned, so the attachment point would experience rotational stress. Where the short strokes just experience a shear load on the lug.
If it isn't a rigid attachment but has a dog leg down into the carrier then the moment arms are shifted and the guide is pushed up on if it were where they are on an AR.
I never cared about the tube at all and that was my attitude, until I would get a random wierd ejection, usually all my brass was around 3 o'clock then after lots of shooting one would go to the rear around 5, then I would get a short stroke like jam. This would only happen during serious full auto abuse of bursts more than 90 rounds of really hot brass.
It is just kinematics and is true for all of them but only shows its head sometimes. That is why I think a system must take control of this for a full reliable system across all the uppers/lowers/ammo/and all the other stuff. If you're making all your stuff, upper and lower, then you can control it by controlling the mfg tolerances.
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