[magikbullet]

Hi guys, thought I'd post some helpful info about poa/poi on the xcr vs the ar.

The current trend in zeroing rifles in .223/5.56 is to zero at 50 yards. This give the most useful trajectory out to 250-300 yards.
The XCR's sight plane is slightly different than an Ar's because buis sit at 3" rather than 2.6" on the AR.
So here is a comparison of a 50 yard zero trajectory on an AR vs an XCR, then a comparison of different zeros on an xcr.

 

[variablebinary]

nice info. Thanks for this.

 

[smschulz]

I wonder how a heavier bullet would react in the 1/9 XCR? Say 62 or greater?

 

[UDT]

Thanks for sharing, good info.

 

[Grey]

If you port this info over to 62 a grain ballistics chart I will love you forever and always be true. I’ll bet the variance is not much. This is great info. Thanks for doing this.

 

[Kainam]

The variance shouldnt be much at all. Gravity is still 9.8 m/(s^2) no matter what weight bullet you use. Bullet velocity has a much greater effect on trajectory.