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Page General » General Discussion
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Archived [ARCHIVED THREAD] - Question about point of impact
Posted: 6/24/2001 8:56:14 AM EDT
I normally sight in my scoped AR's at 100 yards.
Don't know why-just always do.
Given that I am shooting a 16 inch barrel with 1 in 9 twist using 55 gr ammo. If I am sighted in at 100 yards:
Where can I expect the point of impact to be at 100 yards? 200? 300?

Link Posted: 6/24/2001 10:41:19 AM EDT
[#1]
You really ought to know this and the best way is to take your rifle out and see where it shoots. Here's what the computer says based on a 55 grain bullet leaving your barrel at 3240 ft/sec and zeroed at 100 yards.

50=-0.1"
100=0.0
150=-1.2
200=-4.1
250=-9.0
300=16.5
350=-27.0
400=-41.4
Link Posted: 6/24/2001 12:04:44 PM EDT
[#2]
Paul, what height above bore and ballistic coefficient did you enter?

Link Posted: 6/24/2001 7:41:43 PM EDT
[#3]
Thanks Paul.

Archived [ARCHIVED THREAD] - Question about point of impact
Page General » General Discussion
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