03-28-2013, 01:32 PM
You know LRRPF52, this is something I hadn't really thought about that you said....."from which point we see a change in internal ballistics gas dynamics intentionally bleeding to operate the self-loading features of the system.".
So there is more time for the expanding gases to work on the bullet before it starts to get diverted to operate the bolt.
As far as an upper, I'm using a Vltor. From what I've gathered they are definitely forgings and are beefier than the typical forged uppers. I also believe they cryogenically treat it after forging and before they machine it. I feel pretty confident in this upper and I love Vltor products.
I sent the upper and lower off to cerakoted, I meant to take a ID measurement of the barrel receiver portion of the upper. I am a little worried about a loose fit between the barrel extension and receiver ID. I'm worried that all the load, whip, etc will be placed on the lips of the extension and end of the receiver.
Thanks,
JP
So there is more time for the expanding gases to work on the bullet before it starts to get diverted to operate the bolt.
As far as an upper, I'm using a Vltor. From what I've gathered they are definitely forgings and are beefier than the typical forged uppers. I also believe they cryogenically treat it after forging and before they machine it. I feel pretty confident in this upper and I love Vltor products.
I sent the upper and lower off to cerakoted, I meant to take a ID measurement of the barrel receiver portion of the upper. I am a little worried about a loose fit between the barrel extension and receiver ID. I'm worried that all the load, whip, etc will be placed on the lips of the extension and end of the receiver.
Thanks,
JP