28" Satern Liberty Upper - Yea or Nay?

[LRRPF52]

would a bcg, with a gas port adjustment therein (such as what is for sale nowadays), help with settling that down a bit?

Also, it seems to me (pure mental gymnastics, no emperical data) that once the key clears the tube, that any residual pressure dwelling in the gas system will dissipate into the volume of the upper, not materially contributing to further rearward acceleration of the bcg.?.

And I am still an unlearned padawan (as such, not being a smart arse). Isn't it true that with any system, that as one approaches max pressure loads in a given cartrisge that the brass will take more of a beating? I've been trying to get smarter on these things, given I am going to be endeavoring to undertake reloading my own cartridges. This seems to be a common thread at the various custom load development guidance resources on the interwebs.

-MHz

Adjustable gas will help a bit. The AR15 Bolt Carrier Group vents the gas way before the carrier key clears the back end of the gas tube. There are 2 vent holes that the gas rings pass as the carrier travels to the rear, at which time any excess gas is vented out the ejection port, since carrier inertia has already been reached.

I'm currently using Bootleg Adjustable Gas Carriers instead of gas blocks.