[ARCHIVED THREAD] - 50/200 meter zero question.

Posted: 4/17/2010 3:59:44 PM EDT

I would like to set up my AR for a 50/200 meter zero but I would like to do the initial sighting in at 25 meters to get a more precise group. How far below point of aim should the point of impact be at 25 meters to get the first crossover at 50 meters? Thank you.

Posted: 4/17/2010 4:03:29 PM EDT

[#1]

.7 in.

Posted: 4/17/2010 4:37:28 PM EDT

[#2]

I zero in all my rifles at 50yrds.......at 25 meters after zeroing its about an inch low POI

Posted: 4/17/2010 5:04:21 PM EDT

[#3]

Thank you both.

Posted: 4/18/2010 3:55:51 AM EDT

[#4]

When I've run the zero in a calculator, and zeroed in the field, I believe the proper POI at 25 yards for a 50 yard zero is 1.25" low.

Posted: 4/18/2010 10:08:48 AM EDT

[#5]

There really is no 100% answer to this. It depends on the height of the sight/scope off the barrel and the velocity of the bullet. That said, I zeroed my rifle at 50 yards dead on. Went and put on paper at 200 yards and I was 2 inches high at 200. I then rezeroed it at 200, went back to 50 yards and was about 1/2 inch low at 50.

The JBM Ballistics Calculator puts me at .1 high at 50 if I'm zeroed at 200 and -1.25 inches at 25. Either way, its always best to actually shoot your rifle at paper at your zero distance and other known distances to see whats actually happening.

[ARCHIVED THREAD] - 50/200 meter zero question.

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[ARCHIVED THREAD] - 50/200 meter zero question.

[ARCHIVED THREAD] - 50/200 meter zero question.