arlaunch
Active member
How many firings are you guys/gals getting out of your AR-308 brass?
What type of brass etc.
After the new Krieger barrel break in, I took 12 pieces of brass out to make 4, 3 shot groups. My plan was to keep loading those 12 cases until failure.
I ran the 168's between 2550-2650fps for 2 firings, Then the 175's between 2500 - 2575 for 2 more firings.
Brass will no longer hold a primer real firmly. Maybe it would have been fine....
I tossed all twelve into the garbage last night.
4 firings seems to be the limit at those pressures. I mostly used IMR 4064.
I am still investigating if the brass gave out early due to chamber pressure or early extraction due to port pressure.
Ejection angles are perfect with this barrel.
I am using regular Starline .308 brass
What type of brass etc.
After the new Krieger barrel break in, I took 12 pieces of brass out to make 4, 3 shot groups. My plan was to keep loading those 12 cases until failure.
I ran the 168's between 2550-2650fps for 2 firings, Then the 175's between 2500 - 2575 for 2 more firings.
Brass will no longer hold a primer real firmly. Maybe it would have been fine....
I tossed all twelve into the garbage last night.
4 firings seems to be the limit at those pressures. I mostly used IMR 4064.
I am still investigating if the brass gave out early due to chamber pressure or early extraction due to port pressure.
Ejection angles are perfect with this barrel.
I am using regular Starline .308 brass