I know this has probably been discussed on here before, but my google machine isn't working right now and the search function on here doesnt exactly work very well.

My question is at what distance do you zero your red dot at? I've heard varying distances and contradictions, but I don't plan on extending much further than 100yards with my red dot on it.

The most common are 50 or 100 yds. I use 100 yds because you never have to hold under at any point. Depending on the rifle/ammo/sight height, you will be around 11" low at 300 yds.

50 yd zero will get you about 1.5" high at 100yds, back on around 230yds, and ~8" low at 300yds.

http://grburnett.us/guns/ImprovedBattlesightZero.pdf

While this is about zeroing your BUIS, it gives good reason for zeroing at 50 yds for a 200 yd zero.

[This message has been edited by maverick2076 (edited 3/23/2012 9:13a).]

Since you are saying your use will likely be <=100 go with the 100m zero.

If you are wanting something effective out to 300m consider the 36yd/30m zero since you are back on point of aim at 300m.

As a side note always take into account the mechanical offset inside of 25m ( at close distances you have to aim up to a couple of inches high )

I zero at 50, which theoretically is on target at 250. Military zeroes at 25 meters, theoretically on target at 300 meters.

quote:

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If you are wanting something effective out to 300m consider the 36yd/30m zero since you are back on point of aim at 300m.

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I'm plenty effective at 300 yds with a 100 yd zero.

For me, it is much easier to hold over a bit at 25, be pretty much dead on from 50 to around 200, then hold over at 200 + than hold under by different amounts from 50 to 200+ then be on at 300.

NRH is right...if you are shooting at eggs.

The beauty of the 50/200 zero is that the path of the bullet is within an inch or two of your line of sight out to roughly 225 (and you really need good dope in a ballistic computer...or better yet, go dope it all out at the range with the load you are using.)

Past there, you hold over a bit out to 300, and then you need to have a better plan past 300. In matches and in the real world, an inch or two matters not. In most shooting games the plates at 300 and beyond will be 10-12 inches or larger. So you simply hold at the top of the plate (from 200 to 300) and you get a hit.

Its a simple process...ask yourself, is the target under 200 yards? If yes, hold center, send one and drive on. If no, but less than 300, hold at the top of the plate (or the Adams Apple as the situation requires).

Like I said, the system breaks down past 300 and gets a little more complicated, but if you are shooting further than that you need to have a better plan ahead of time (and that includes not trying a 4-500 yard shot with the 6-8 MOA dot in a cheap red-dot).

Simple is good.

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