what's your zero?

myronman3

3/504 PIR 91-94
#1
out of curiousity....wondering what range guys zero their rifles at.

i zero for 300...i know that @ 100, i am .9 mils high, and at 200 i am .4 mils high. i use the reticle out to 300, and start twisting knobs from there out.

curious to what others do.
 
#2
I personally zero for 100m to keep me from making a brainfart on where i am when the pressure is up (animal or competition stage etc)

Followup question on above: Do you guys zero for the Coldbore shot (CBS, CCBS etc) or the following shots that usually group together?
My gun consistently shoots 0.1mrad low on cleancoldbore and the groups following shots, i zero for following shots today and reduce by 0.1 on the CBS.
 
#3
It depends. On my Ftr rifle it is zeroed at 300 yards because that is the primary distance for local matches, and only a minor tweak is needed as conditions change. For "tactical" shooting involving a multitude of distances I use 100yds because a wide variation in ambient conditions and even velocity will have little to no impact on the zero at 100. On the other hand when zeroed at a longer distance conditions have a significant impact, and if you do not hit dead zero is it due to the conditions or should you make a scope adjustment because something really changed? Also it helps to communicate since nearly everyone uses 100yd zero. Years ago I zeroed at 200yd but changed when I understood these potential errors could bite you.
 

lash

Swamp Rat
#4
It depends. On my Ftr rifle it is zeroed at 300 yards because that is the primary distance for local matches, and only a minor tweak is needed as conditions change. For "tactical" shooting involving a multitude of distances I use 100yds because a wide variation in ambient conditions and even velocity will have little to no impact on the zero at 100. On the other hand when zeroed at a longer distance conditions have a significant impact, and if you do not hit dead zero is it due to the conditions or should you make a scope adjustment because something really changed? Also it helps to communicate since nearly everyone uses 100yd zero. Years ago I zeroed at 200yd but changed when I understood these potential errors could bite you.
^^This^^

If your cold bore shot is really different, then make that mental adjustment for the cold bore shot. Caveat: If you are only using the rifle for hunting, then every first shot at game is cold bore and you need to plan accordingly. However, as has been discussed before at length, the majority of cold bore variation is usually due to cold shooter and not cold bore, with some possible exceptions.
 
#5
My rifle is a tactical/competition rifle. So I zero at 100 yards (not for the cold bore). I make a mental note of where my CB shot is and adjust for that when I need to.
 

Rob01

Super Mod/Team Blaster
#7
I zero at 100 yards as every range I need to go from there whether it be in to 10 yards or out to 1000 is dialing up. Makes it simple especially with a zero stop scope and for hold overs. I don;t have to worry about dialing down.
 

Fursniper

Captain, USMM (retired)
#8
100 yards for all the good reasons mentioned above. If your CBS is consistantly different from your zero, it's easy enough to adjust for.
 

dannySH

Always learning
#9
I zero all my rifles at 100 yards. As said before, getting a "real zero" at longer distances is very unreliable due to many variables involved (bullet velocity, weather condition, shooter position etc) that increase exponentially with the distance,
 

BearNaked

Beer Saved The World
#12
100 yards on all rifles. For the things that matter, CBS shouldnt be that far off and is a kill shot. Dont even bother worrying about it so i can make sure i have plenty of beer for my hunt.
 

scudzuki

Gunny Sergeant
#16
100 yards for scoped rifles, except for the DMR running a Razor Gen II 1-6x with JM BDC reticle which requires a 200 yard zero.
I have a few AR-15s with iron or 1x (RDS, reflex, etc) sights which I zero at 50 yards, which places the POI +/- 3" the POA out to 225 yards or so.
 
#18
I'm zeroed for 200yds with my CTR. My cold bore shot typically hits about .5 to .75 inch to the 1:00 at that range. At 100 I don't even think about it. Every other gun I own is zeroed for 100yds