Cowboybebop
Member
So today I'm sighting in a 20" AR in 5.56 with an ACOG and want to be zeroed at 50 yards.
According to my ballistics chart at this zero a 62 grain M855 will be 1" low at 15 yards. So I decide to sight in at 15 yards and get my hits 1" low from bullseye. I'm hitting perfectly 1" low at 15 yards, so I move the target out to 50 yards and fire a group - this group should be dead nuts at this range according to the chart. Instead it's about 4" high.
What gives?
According to my ballistics chart at this zero a 62 grain M855 will be 1" low at 15 yards. So I decide to sight in at 15 yards and get my hits 1" low from bullseye. I'm hitting perfectly 1" low at 15 yards, so I move the target out to 50 yards and fire a group - this group should be dead nuts at this range according to the chart. Instead it's about 4" high.
What gives?