How do YOU zero your carbine? [Archive] - Glock Talk

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Disregarded9-side
02-13-2012, 19:53
I'm going to the range tomorrow to verify my co-witness on a new set-up. I like to zero at 50 yards, it works for me. I understand the theories behind 25, 50 and 100 yd/m zeros.

I'm planning to use some high quality handloads to zero my rifle which I feel will be more consistent than XM193 (notoriously mediocre). I don't have 2,000 high quality handloads that I made on a single-stage press sitting in my closet however, and that's what I'll need to count when the world ends in May, 2012 or whatever.

So at what range to you zero your rifle and what ammo do you use to do it?
Happy Monday.

freedom790
02-13-2012, 20:13
I've zeroed my RECCE at 25yds, then I reconfirm at 300yds. If i'm on a USPSA sillouette at 300 then I'm good. Using SS109 projectiles on varget powder.

My 18" gun is zeroed at 100yds. scope calibration checked out to 600yds where my range doesn't go any further. Using 60gr V-max projectiles on varget again.

cyphertext
02-13-2012, 20:16
If I ever get to the range, I will probably zero mine at 50 yards as well. The range I shoot at only has 50 and 100yd lines.

Disregarded9-side
02-13-2012, 20:41
Found this on M4c:
http://img267.imageshack.us/img267/5733/ballisticschart.png

8" off at 100 yards isn't good for my use. I'm shoot more at 40-100 than 25-50.

USMC03Grunt
02-13-2012, 20:50
With any of my ARs, I zero in at 25m then tweek it at the 300m range.

Boxerglocker
02-13-2012, 21:01
I like a 50 yard zero too... from scratch I start with a few 3 round groups of XM193 as a baseline then use my own 55g Horandy FMJBT reloads with TAC. Once I get it dialed to my satisfaction at 50, move to 200 to dial is in.... then move back to 150, 100, 50 again and then lastly 25 to confirm hold overs.

I'll then shoot my 69g SMK reloads to verify MOA adjustments required for later down the road.

phonejack
02-14-2012, 04:50
100 yards

eracer
02-14-2012, 04:58
50 yards for my 5.56 w/62g M855
75 yards for my .300 BLK w/220g subsonic (+1.7 @ 36 / -10 @ 125)
230 yards for my 6.5G w/123g A-max (+3.8 @ 130 yd. / -53 @ 500 yd.)

Patriot III
02-14-2012, 06:01
Zero at 25 yards.... 1.5" low. GTG.

FatBoy
02-14-2012, 07:42
W/ my 1x red dots, I do 50y zero thing. Keeps it +/- ~2.5" from zero to ~260y. After that I'm going to need a higher mag to be useful.


http://www.ar15.com/content/page.html?id=659

FB

Mayhem like Me
02-14-2012, 07:43
very similar to eracer

SBR and ACR are zeroed at 50
300ACCBLK zeroed at 75

TangoFoxtrot
02-14-2012, 07:47
I zero at 25 yards with my AR. I don't care about accuracy out past 150 yards with my AR. I have other calibers to handle 150 yards and beyond.

bullittmcqueen
02-14-2012, 10:04
With Aimpoint m2 zeroed at 50 yards so that anywhere within the 200 yard spectrum the rifle should in theory be no more than 2 inches from point of aim/point of impact.

with a magnified scope, zeroed for 100 yards to allow dialing turrets for further distances.

Disregarded9-side
02-14-2012, 11:39
Zero at 25 yards.... 1.5" low. GTG.

I've heard of people doing this before for ease/lack of space, and then confirming at 50 yards or whatever.

Seems like a good way to do a quick zero on a time/ammo budget if it's consistent enough.

LA_357SIG
02-14-2012, 11:48
50 yard zero on irons and 1x optics.

humanguerrilla
02-14-2012, 11:57
25 yard zero. Personal preference. I can see the pluses of other zeros.

MN-glock27
02-14-2012, 12:09
I zero too 100yards using one of those conversion targets on a 25yard range. When I find a 100yard range I'll confirm the zero then.

Sgt.K
02-14-2012, 15:34
I did the 25 yard 1.5" low then confirmed a 50 yard zero with the flip BUIS and 50 yards with the Mepro 21.

ddbtoth
02-14-2012, 17:02
Zero at 25 yards.... 1.5" low. GTG.

Ditto-

glockfanbob
02-14-2012, 18:02
I'm about to zero my new AR soon, good thread, good timing.

BEER
02-14-2012, 22:55
100 yards.

i figure if i can hit a paper plate* at 100yards then i can hit anything i need to. if it's beyond 100 yards i shouldn't be shooting at it since i havce room and time to get the hell out of dodge.

*i don't believe in "bullseye" accuracy, i believe in center mass accuracy and a paper plate about covers it.

1time
02-14-2012, 23:16
50 yard zero for AR platforms. 100 yards if it has a scope I can dial elevation.

WoodenPlank
02-15-2012, 00:13
50 yards on Comp M2 and BUIS. Put dot between nipples, squeeze trigger. Even with my 10.5" barrel, it guarantees solid hits past 150 yards.

PlasticGuy
02-15-2012, 01:47
I always zero my irons at 50. My zero with optics varies based on caliber, barrel length, and type of optic.

TangoFoxtrot
02-15-2012, 08:21
I live in the burbs so I really won't need to worry about 250 yard shots for defense purposes anyway.

eracer
02-15-2012, 08:29
I zero at 25 yards with my AR. I don't care about accuracy out past 150 yards with my AR. I have other calibers to handle 150 yards and beyond.Well, a 25 yards zero with M855 will give you another zero around 230 yards, and you'll only be -5" @ 300 yards. A 25 yard zero is really best for longer range MPBR. If you want the flattest curve for <200 yards, then a 50/200 zero is best.

mgs
02-15-2012, 11:01
50yds for me, Mike.

Bodyarmorguy
02-15-2012, 11:09
I zero at 25 yards. 2 inches low at that range I find gives me a POA/POI at 100 yards. I then know my hold over at varying ranges between.

rem2429
02-18-2012, 06:34
I like the 50/200 yard zero idea, but try to actually shoot at 200 yards. It minimizes error at 300, close enough at 50.
Ex a zero error of a half inch left at 50 = 2 in left at 200, 3 in left at 300.
If half in left at 200 = .75 left at 300 and .125 left at 25.

At least in theory.

Using this gives about 1.25 in impact above los at 100, and 5 in low at 300.
I use 55 gr vmax over Varget for accuracy and it shoots along with 55 gr 5.56 ball at these ranges.

Todd00000
02-18-2012, 06:44
The Army is moving to a 100 meter zero, if you can get 5 rounds in a 3x5 card at 100m you can shoot small game at 300+.

faawrenchbndr
02-18-2012, 08:19
A 50m zero works well for my needs,.......

NEOH212
02-18-2012, 09:41
All of my AR's with iron sights get set up at 25 meters and the zero confirmed at 100 meters and adjusted from there. This way I get a 300 meter battle zero.

My AR with the red dot gets zeroed at 50 meters. This way I'm with in 1.5" of point of aim out to 200 meters with a 62 grain bullet.

Brucev
02-18-2012, 10:24
I own one AR-15... a COLT Hbar. Excellent rifle in every respect. Upon purchase I zeroed it at 100 yds. Very accurate rifle. Never saw a need to change the zero as for longer ranges, I just use the rear sight drum.

syntaxerrorsix
02-18-2012, 11:41
I use the improved battle sight zero. 50y/200m


"When zeroed at 200 meters, a distance twice that of normal combat engagements, these rifles have a very flat
trajectory that is less then 2" from line of sight at all intermediate distances; a distance that's smaller than the normal
dispersion of arsenal or factory loaded ammunition. This tiny trajectory arc allows very precise shooting out to 250
meters where the bullet is only 2" below line of sight."


Attached is the .pdf if anyone's interested.

surf
02-18-2012, 12:26
For my purposes I also use a 50y / 200m zero. So from contact distance out to about 240y you are ~ +/- 2.5". My next preference would be a 100y.

Slotback
02-18-2012, 19:39
50/200 as well

EmbryRiddle
03-04-2012, 08:39
would it be a similar method for a .308?

Cole125
03-04-2012, 13:19
I zero my iron sights at 25 yards, and ACOG at 100 yards. Works for me.

WoodenPlank
03-04-2012, 16:25
would it be a similar method for a .308?

I'm sure .308 has a rather different ballistic curve than 5.56, and would require some adjustments to the zeroing distances. The principles will be the same, just different near/far zero ranges, depending on optic height, bore length, etc.

EmbryRiddle
03-04-2012, 16:46
I'm sure .308 has a rather different ballistic curve than 5.56, and would require some adjustments to the zeroing distances. The principles will be the same, just different near/far zero ranges, depending on optic height, bore length, etc.

that's what I was figuring, I was just wondering if the .308 shared the same near/far zero characteristics as the 5.56. I want to zero at 200, but don't have a range close that goes that far.

DougW
03-04-2012, 16:55
My carbine with the TA31F ACOG is zeroed at 100 yards, as is the carbine with an Aimpoint ML2. Scopped AR's are zeroed at 200 yards, and the one open sighted A2 is zeroed at 50/200.

banger
03-04-2012, 17:05
With any of my ARs, I zero in at 25m then tweek it at the 300m range.


This^^^

Theory says that with a 25 meter zero you are on...

Reality says the differences can be rather large.

IMHO, 25 allows you to get the sights somewhat aligned.

Actually shooting at 300 gives you the zero.

RyanNREMTP
03-04-2012, 17:10
Mine is zeroed in at 25 yards. No reason in particular other than everyone else on the team has it that way.

thisaway
03-04-2012, 19:05
100 yards

+1 :thumbsup:

USMC03Grunt
03-04-2012, 19:23
This^^^

Theory says that with a 25 meter zero you are on...

Reality says the differences can be rather large.

IMHO, 25 allows you to get the sights somewhat aligned.

Actually shooting at 300 gives you the zero.


Yeah, the 25m zero will get you in the ballpark at 300m but it still needs to be tweeked a little to be right on. Kind of like the gun store that mounts and bore-sights a scope on a hunting rifle. That does NOT mean that it's sighted in (as I have heard some hunters claim) but it simply means you will be somewhere on the paper but you still need to fine tune it to get the shots going where you want.

Hour13
03-04-2012, 19:42
Rough it out at 25yds, dial it in at 100yds. GTG for any distance I could realistically expect an AR(and my eyes!) to perform. If it's getting an X3, scope, etc, that gets set to 300yds.