02-06-2020, 07:20 PM
tdbru Wrote:thanks guys. i was curious how a heavier (i.e.tungsten weighted) buffer would slow down the point at which the whole mass moved far enough back to expose the end of the gas tube. theory i am wondering about is, if the reciprocating mass went up enough, the gas pressure at time of gas tube exposure to the action interior would be way lower due to the longer time for more recip mass to move enough to expose the end of the gas tube. hopefully resulting is less carbon deposit in the action. i.e. a cleaner action. since my setup is a semi anyway, lengthening the cycle time is a moot point. it still is ready to go again way before i am. can't really add mass to the BCG unless they make Tungsten BCGs, but i've not seen any yet. so the buffer may be the only way to add mass to the reciprocating assembly. has anyone tried this experiment yet? gone with a very heavy buffer? did it make the action cleaner?
thanks,
-tdbru
Your going backwards with going heavy really. The only real way to reduce carbon in the action is to limit the gas that goes down the gas tube.
More gas in, more crude in the action. Less gas in, less crude in the action.
What will happen by going heavy is you will slow down your unlock time and smooth out the recoil impolse, but it's not going to keep the action cleaner. What you will we is one weight man this is awesome, let's try 2 weights. Man that's even better, let's try 3 weights and then the gun probably won't run anymore from being undergassed.
To break it down more. If you have a regular gas block installed. Your going to get all the gas down the gas tube that the gas port and pressure can make. As you add weight you will slow the action and smooth out the felt recoil. Till you get to heavy and run into under pressure problems because your system is too heavy to cycle with the gas.
If you have a adjustable gas block, you can choke down the gas needed to run standard weight setups and by doing that properly time the system and reduce the gas and crude being blown into the action.
You can go to the far side and go adjustable gas plus lowmass bcg and lowmass buffer and reduced buffer spring rate. That will allow you too cut the gas down even more and then also cut down on the crude getting into the action.
But then you also very much reduce the operating window that your rifle will work, because everything is so light weight it will reach the point of being to dirty to work much much faster. Even though your action is cleaner then it would be if running more gas for the same amount of shots.
All the things I just posted will work to accomplish a certain improvement. But adding weight to the system to slow down a non adjustable gas setup will never make it run cleaner.
Hope this helps sir.