11.5" sbr iron sight zero?

[msr]

I have always zeroed my AR's at 50 yards (1.5" low at 25 yards, 1.5" high at 100 yards, and dead on at 200 yards). So I need to zero a new sbr and am wondering at what distance since this should not be a 200 yard rifle. Or, should I keep zero the same on both rifles for uniformity?

[MH64]

I would think a 200 yard zero would still be correct for the caliber.
Any other thoughts?

[UPSguy]

Why would you change?

[MattC]

My 10.5" duty rifle is zeroed at 50 yds. It seems to be working fine so far.

-Matt

[TacDoc]

I have 3 5.56x45 chambered AR's.

14.5" bbl with Aimpoint: BUIS and optic zeroed at 50yds.
10.5" bbl with EoTech: BUIS and optic zeroed at 50yds.
18.0" bbl with NF 2-10x24: BUIS zeroed at 50yds, optic zeroed at 100yds.

I like standarization.

[Robb Jensen]

I use a 50yd zero (start at 25yds getting it good windage wise, and hitting 1" low) then move to 50yds and get it to hit POA/POI.

The absolute best way is to measure your sight height over bore, chrono your load and find the ballistic coefficient of your projectiles and plug these numbers into a ballistics calculator and find the flattest trajectory playing with the sight in distance, use a max range of 250-300yds.

I use this ballistics calculator http://www.handloads.com/calc/index.html