Interesting…… I’m under the impression that the longer the bolt stays locked (within reason) it contributes less stress on the system and can help accuracy… kinda bolt gun-ish….. but you have my attention.
Say I turn gas block up to get proper ejection to counter heavier buffer, would that equal everything out? Wouldn’t it run like a less gassed gun with a lighter buffer?
Sorry, I didnt address your impression about lock time. This why why I suggested getting a book and gaining a true understanding of what everything in the action does and why. Much of it is a judgment call based on use case.
A slightly overgassed rifle is going to be more reliable than a slightly undergassed rifle in adverse conditions. If your rifle is a gaming gun and sees few rounds between cleanings, then you'd tune for the least amount of recoil. This means the least amount of gas running the least amount of reciprocating mass. This will give you a very soft shooting rifle, but it will be more sensitive to adverse conditions, like something as simple as going dry or being dirty. You'll start to feel the bolt dragging, until it gets to a point where it will no longer peel a round off of a topped off magazine or it just plain chokes and starts to jam up.
On the other hand, let's say you tune your rifle to require an H2 or H3 buffer and perhaps a Sprinco white hot or blue spring, in this case, the rifle will go longer without cleaning or lube because it will be able to power through the crud. The downside is more gas, recoil and parts wear.
Personally, I tune my longer range rigs to run on an H buffer and white hot spring. I still get relatively light recoil and good performance in adverse conditions.
On my rifle that I put together with the purpose of staying reliable in the most adverse of conditions I purposely over gassed the port on the 13.9 barrel to something around .080. I use a riflespeed gas block to control the gas. Behind that I run an A5H2 buffer with a Sprinco green spring. I set the gas to give me around a 3 - 4:00 ejection pattern. When it starts to really dirty and I feel it getting sluggish, I add lube when I can. When it gets to a point where adding lube doesn't help enough or I just dont have any lube, I turn the gas up.
There is an operational windows within which things will run reliably. You have to choose which windows you want to be in.
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