01-03-2015, 04:52 AM
My buddy did some detailed bolt work to his .260 Rem AR10's, ArmaLite Inc. factory guns, and got rid of the harsh treatment of brass with even RL17 loads pushing 142gr SMK's from Lapua brass.
He also made his own 26" extended length gas system .260 Rem AR10 with a Krieger barrel, to deal with the port pressures.
.308 with pills like the 175gr SMK and 178gr Hornady pushed by slower powders have the same problems, hitting the port with higher pressures. Some people try to address this with adjustable gas blocks, but that's really a temporary band-aid solution.
I'm going to install the AR10 JP SCS in mine I think to see if it helps.
He also made his own 26" extended length gas system .260 Rem AR10 with a Krieger barrel, to deal with the port pressures.
.308 with pills like the 175gr SMK and 178gr Hornady pushed by slower powders have the same problems, hitting the port with higher pressures. Some people try to address this with adjustable gas blocks, but that's really a temporary band-aid solution.
I'm going to install the AR10 JP SCS in mine I think to see if it helps.
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