12-31-2023, 03:13 PM
There is a lot of misunderstanding about buffer weights.. Heavier buffers effect on dwell time or lock time (the amount of time the bolt bolt takes to unlock) is insignificant..
What heavier buffers do is slow the carrier's velocity..After the bolt unlocks, it is the buffer's weight that will have an effect on the residual pressure, not dwell or lock time..
Excessive carrier velocity can be improved in an over gassed system with heavier buffers, but they can also have negative effects such as lower gas ring life, increased perceived recoil and bent firing pin retainer pins..
It is always (best) to mitigate the gas to the rifles system if possible..
Computer graphs of tests done by SilencrCo shows the lock time and carrier velocity during a high speed camera test using different buffer weights in an M4 rifle suppressed and un-suppressed.. The test proved Colts finding back in the 1960's when they switched the not so effective Edgewater ring springs buffer spring guide to the new 3 times heavier buffer developed by Colt engineer Foster Sturtevant, to counter the higher port pressure created by the slower burning WC846 ball powder..
https://www.youtube.com/watch?v=OMXd8nzE5LQ
What heavier buffers do is slow the carrier's velocity..After the bolt unlocks, it is the buffer's weight that will have an effect on the residual pressure, not dwell or lock time..
Excessive carrier velocity can be improved in an over gassed system with heavier buffers, but they can also have negative effects such as lower gas ring life, increased perceived recoil and bent firing pin retainer pins..
It is always (best) to mitigate the gas to the rifles system if possible..
Computer graphs of tests done by SilencrCo shows the lock time and carrier velocity during a high speed camera test using different buffer weights in an M4 rifle suppressed and un-suppressed.. The test proved Colts finding back in the 1960's when they switched the not so effective Edgewater ring springs buffer spring guide to the new 3 times heavier buffer developed by Colt engineer Foster Sturtevant, to counter the higher port pressure created by the slower burning WC846 ball powder..
https://www.youtube.com/watch?v=OMXd8nzE5LQ