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November 16, 2012, 04:45 PM | #1 |
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AR15 zero for scope AND irons
I've read a lot of threads about the "best" zero but haven't seen many on scope and iron sight zero.
What range should I zero my BUIS for? 3X scope? |
November 16, 2012, 05:22 PM | #2 |
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You're going to get more than one way to do this, because individuals have different scopes/irons, different needs, skill levels... you get the idea.
I will, as a general rule, set BUS to zero at 50 yds with a 55 gr. bullet. With this setting, other than at the muzzle, you'll never be more than 2" above or below your POA out to 270 yds. Scope? Hard to say. You don't say what you have for a reticle... the functionality of the reticle tends to establish your best zero.
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November 16, 2012, 06:22 PM | #3 | |
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November 16, 2012, 06:37 PM | #4 |
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Look for a video about zeros by Travis Haley on youtube. He displays the results of a half a dozen different zeros for a 5.56 AR from 25m out to 500m. From there you can decide which zero is best for you.
50m and 300m zeros seem to be the most popular. |
November 16, 2012, 07:29 PM | #5 |
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No matter what you do, you need to actually check your zeros and where you actually hit. Don't just rely on ballistic charts. Every gun/optic/round combo will be slightly different.
You really need to check it at all the distances you plan on using it and make yourself a DOPE book. (Data on previous engagements).
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November 16, 2012, 10:37 PM | #6 |
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Thats what complicates things as well.
Would like to shoot cheap 55 gr rounds and the 77 gr as well. Scope is a Nikon 3X with BDC reticle. http://www.nikonhunting.com/products...C_Carbine/8496 Says 200 yard crosshair. So need to zero for 200 yards. Last edited by breakingcontact; November 16, 2012 at 10:45 PM. |
November 16, 2012, 11:27 PM | #7 | |
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