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It's pretty funny that the marines were the ones who wanted to adopt the M16A2, but now the 36 yard marine zero for M4s is actually basically a copy of the short aperture zero for the M16A1.
Both the M16A1 and the 36 yard M4 zero are nominally 250 meter zeros where the peak of the bullet travel is 3.5 inches over the sights, the bullet crosses the far zero somewhere around 270 yards and then is 3.5 inches low at 300 yards.
if you try doing the 25/300 meter zero the army uses (which it looks like not every army unit uses it based on one thing I read) you get like a 7 inch peak in the zero. so going to the 36 yard zero you're reducing your highest point by 50%
>>
what's the best zero?
>>
>>64479710
>the one you have with you
probably either the 50/200 or the 36yard/250m one. the 50 yard/200 yard is popular because most people have easier access to 50 yard ranges. the bullet's never going to peak beyond like 1.5 inches or so and most people don't really need to be able to hit past 200 yards because shooting someone 200 yards away is usually a crime.
the 36 yard zero doubles your distance from the aim point but puts you out to 300 yards which is basically as far as you are going to be making hits on someone who is trying not to get hit without magnification anyway.
most scopes with BDCs will have a nominal 100/200 yard zero. Like the acog has the 100 meter zero but the drop is only 1 moa at 200 meters so it's the same zero and then it gives you a new aim point for 300 maters. I think most LVPOs are similar with some zero that's about 50/100/200 meters and then a separate reticle for 300 meters plus
>>
>>64479710
it's a compromise.
a 50 yard zero means you are never more than like an inch and a half high but you start running into issues before 300 yards
36 yards means you are going to be 3.5 inches high but can push out to like 300 meters
25 meters means you are 7 inches high but you get to like 350 meters nearly 400 yards
>>
>>64479998
>>64479727
i dont get it you gotta take into account that you can only zero stuff on public ranges.
>>
>>64483767
when you zero a gun you are making a tradeoff between how far you can shoot the gun without changing the sites and the bullet's deviation from the sight as it travels from the near to far zero.
the public range thing isn't the biggest deal in the world because you can print targets that have like an
>aim here
>hit here
thing that allows you to zero at a distance other than the one the range allows. the army and marines use targets like that
>>
man, just point and shoot and adjust from there.
>>
>>64483803
>adjust sights while being shot at



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