05-25-2014, 04:02 AM
Tried some 123SST's over 28 grains AR-comp and got 5 shot groups 3/4 inch and under.
Last group put 4 shots into .350 with the other one slightly below for a .630 inch group.
Went with COL of 2.287 to fit my ASC mags.
I've shot 85 grain sierra's and 95 grain V-max's also and they go around 3/4 inch.
It's the most accurate light weight upper I've shot.
Last group put 4 shots into .350 with the other one slightly below for a .630 inch group.
Went with COL of 2.287 to fit my ASC mags.
I've shot 85 grain sierra's and 95 grain V-max's also and they go around 3/4 inch.
It's the most accurate light weight upper I've shot.