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Posted: 8/16/2016 3:32:54 PM EDT
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Several years ago I bought a cheap 8.5” pistol kit. It was way over gassed. I played around with buffers and springs but couldn’t get it to run right. Eventually I bought an adjustable gas block for it, but that time I had moved on to other projects and didn’t get it installed until a couple of days ago.
I’ve got a plan for setting it up but was hoping for some feedback on whether or not I am going about this backass ackwards. I have a bunch of 75 grain Prvi so I planned to set up the pistol with a carbine buffer opening the block just enough to reliably lock back the bolt on the last round. Then hopefully I can run some 193s in it by putting in a heavier buffer. Does this sound right or should I be doing something different? Thanks Pappy |
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Quoted:
Several years ago I bought a cheap 8.5” pistol kit. It was way over gassed. I played around with buffers and springs but couldn’t get it to run right. Eventually I bought an adjustable gas block for it, but that time I had moved on to other projects and didn’t get it installed until a couple of days ago. I’ve got a plan for setting it up but was hoping for some feedback on whether or not I am going about this backass ackwards. I have a bunch of 75 grain Prvi so I planned to set up the pistol with a carbine buffer opening the block just enough to reliably lock back the bolt on the last round. Then hopefully I can run some 193s in it by putting in a heavier buffer. Does this sound right or should I be doing something different? Thanks Pappy The idea of adjustable gas block is that you, you know, adjust it. And nothing else. - OS |
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Quoted:
The idea of adjustable gas block is that you, you know, adjust it. And nothing else. - OS The block will be under the handguard and hard to access so I'm trying to just set it up once. Easier to swap out a buffer. Let me try this from another angle. Will the 75 grain cartridges produce lower pressures than the 55? If so will a heavier buffer help with the higher pressure? I'm asking because I'm not sure my assumptions on pressure generated by different bullet weights and when to use a heavier buffer are correct. |
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