11-07-2018, 03:09 PM
External piston systems normally are mated with unusually heavy buffers because the gas acting on the piston cup or head causes instantaneous carrier inertia, which is bad for extraction so close to obturation.
Every company that has seriously tackled the external op-rod guns has used very heavy buffers to act as a rate reducer, and they are usually combined with heavier action/recoil springs.
Every company that has seriously tackled the external op-rod guns has used very heavy buffers to act as a rate reducer, and they are usually combined with heavier action/recoil springs.
NRA Basic, Pistol, Rifle, Shotgun, RSO
CCW, CQM, DM, Long Range Rifle Instructor
6.5 Grendel Reloading Handbooks & chamber brushes can be found here:
www.AR15buildbox.com
CCW, CQM, DM, Long Range Rifle Instructor
6.5 Grendel Reloading Handbooks & chamber brushes can be found here:
www.AR15buildbox.com