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Shoot-it
08-01-2012, 5:09 PM
What's your 100 yard zero on your big game rifle's.I need to do some long range shooting but i am limited where i am at.

FLIGHT762
08-01-2012, 5:20 PM
I must be missing something, but I don't quite understand your question.

"What's your 100 yard zero on you big game rifle?"

Is this one of those trick questions like; Who's buried in Grant's Tomb?

napahunter
08-01-2012, 5:32 PM
I zero in at 1" high at 100 yards.

CSACANNONEER
08-01-2012, 5:36 PM
I prefer irons for hunting deer. In the area I use to hunt (and want to again), a 200 yard shot would be pushing it.

Noonanda
08-01-2012, 5:41 PM
I have my go to guns zero'ed at 200, they will be slightly high at 100 or less, dead on at 2, dropping at 3

wjc
08-01-2012, 5:45 PM
At 100 yards, I zero at 2" above the bullseye.

drdarrin@sbcglobal.net
08-01-2012, 5:50 PM
The well established rule of thumb for most modern cartridges and scoped rifles is sight in at 25 yrds, point of aim is point of impact. Check at 100 to ensure windage is correct.

On my 30-06, 243, 7mm-08, at 100 yds, I'm hitting about 3 1/2 inches high. That puts me back on point of aim, point of impact at about 225 to 250 yds and in the kill zone out to about 350 yds. kill zone = aim for hair, not air.

Barbarossa
08-01-2012, 5:53 PM
I also do the 2" high at 100 yards.

Something about the drop of a .30-06

TuleyHopn
08-01-2012, 6:02 PM
What rifle?
Caliber?
Slug weight?
In my 1958 Remmy 760 30.06 with 150gr silver tips I sight in 3" high at 25 yards. That way from point blank to 450 yards if I center on the chest behind the leg the point of impact wont be more than 3 inches high or low, well within the kill zone.
Every rifle is different but the laws of physics (or ballistics) are constant. A little research on your caliber and slug weight will get you on paper but make NO MISTAKE..... fine tuning is a must at whatever range you choose.
Heh..... To you slug stackers who are about to slam me please understand I have NEVER been a benchrest shooter.

ADAM
08-01-2012, 6:24 PM
The well established rule of thumb for most modern cartridges and scoped rifles is sight in at 25 yrds, point of aim is point of impact. Check at 100 to ensure windage is correct.

On my 30-06, 243, 7mm-08, at 100 yds, I'm hitting about 3 1/2 inches high. That puts me back on point of aim, point of impact at about 225 to 250 yds and in the kill zone out to about 350 yds. kill zone = aim for hair, not air.

good advice here

lewdogg21
08-01-2012, 6:51 PM
2" high generally. Short thumpers are on at 100 yds

drdarrin@sbcglobal.net
08-01-2012, 7:20 PM
What rifle?
Caliber?
Slug weight?
In my 1958 Remmy 760 30.06 with 150gr silver tips I sight in 3" high at 25 yards. That way from point blank to 450 yards if I center on the chest behind the leg the point of impact wont be more than 3 inches high or low, well within the kill zone.
Every rifle is different but the laws of physics (or ballistics) are constant. A little research on your caliber and slug weight will get you on paper but make NO MISTAKE..... fine tuning is a must at whatever range you choose.
Heh..... To you slug stackers who are about to slam me please understand I have NEVER been a benchrest shooter.

You might want to check this site out... http://www.handloads.com/calc/
assuming a MV = 2800 fps, a ballistic coefficient of .418 (I looked it up for the sliver tips), a scoped rifle with a sight 1.5 inches above the bore and your 3 inches high at 25 yrds, you should be dead on again at about 575 yards.

If you're using iron sights your zero would be 2.9 high at 25, dead on at 500.

You're really not shooting deer at those ranges, are you?

Fjold
08-01-2012, 7:30 PM
The questions:
What cartridge are you shooting?
What is your target?
How far are you willing to shoot?

My 22.250 gets sighted in +1.5" at 100 yards (dope out to 1,000 yards)
My 6.5x284 is set at +2" at 100 yards (dope out to 1,000 yards)
My 375 H&H gets sighted in dead on at 100 yards for dangerous game but at 2.1" high at 100 yards for plains game.

180ls1
08-01-2012, 7:58 PM
1.5" at 100 in my .270, most of my shots are within 250 so there is no need for anything more. It may change if i go hunt antelope or something but i hunt elk, deer, pigs mostly so i can sneak up within 200 yards fairly easily.

Shoot-it
08-02-2012, 7:57 AM
I am 2'' high at 100 yards with the 7 mm mag 139 gmx 3300 fps.I did shoot paper out to 350 last spring and if my memory is right it did drop a few inches but would have still been a kill shot.
..
Just wish i had a good rifle range in my area even if i had to drive a little it would be worth it.
Fjord i am willing to shoot 400 if i have to last season on a private ranch i had a nice buck pretty far out there .I decided to try to get closer to it and and 2 coyotes busted me and started barking i never saw that buck again and my friend gives me crap for not taking the shot.

CL&RR
08-02-2012, 8:32 AM
With my handloads I know my velocity and have access to a range that lets me confirm impacts out to 1k, thus gathering proper dope for my rife, therefor my 100yrd zero is exactly that, my zero not one or two inches above impact. Not that I'll take an animal that far, but my scope and my ballistics let me know where I should be hitting and I dial for it. Lets face it many of our California hunts are 100yrds and under. If I had a chance to shoot a deer 200yards or more chances are the deer is not seeing me and I'll have time to adjust elevation and windage to make the shoot. I personally will not hold over the shoulder and hope for an impact.

mif_slim
08-02-2012, 10:47 AM
I zero 100 yards at bullseye. That way I can use the tactical training I been watching from Magpuls, Art of Precision Shooting. I mean com'on, I watched it enough to know how to use it! :p


I zero 1" above. My hunting area you can never see pass 200 yards. The average is 50-80 yards.

Divernhunter
08-02-2012, 11:23 AM
You are good at 2". Mine are about 2.5" or 2.75" max at 100yards. Just hold on the animal and it will die. Remember most misses are high. It has worked well for pronghorns at too long of ranges.

DennisCA
08-02-2012, 11:28 AM
What is the maximum distance you feel comfortable shooting at?
(Be honest with yourself - if it's say 200 yards, that's your max distance)
Also what's your mimum shot going to be? That is going to depend on the terrain.
I think you need to start with that and then it's ging to depend on the gun/cal/bullet-ect-ect.

TuleyHopn
08-02-2012, 2:14 PM
Drdarrin; I would NOT even contemplate a shot close to maximum range for any big game for any reason other than putting down a wounded animal. I have always hunted the high desert in Nevada and Utah and only once in 30 years have I shot anything at over 100 yards. In the high sage and chapparral, distances are deceiving to easterners (like my brother-in-law) and once in a while kill shots at extreme ranges are ARE called for. THAT shot is why I use this system.
I do appreciate you calling me on the distances....... I should have made it clear that I dont condone extreme shots just to fill a tag.
Most importantly....... the system WORKS. For me at least. :D

Rusty_Buckhorn
08-02-2012, 3:15 PM
I dial my rifles in to 200, copper ammo is too expensive to test at 100 :facepalm:

Shoot-it
08-02-2012, 5:40 PM
I dial my rifles in to 200, copper ammo is too expensive to test at 100 :facepalm:

Start reloading it helps.You still need to sight in copper the poa is different i am sure you know that.I have my slug gun dead on at 100 yards with lead but when i shot copper it was 2 '' high.Those copper slugs are the pricey ones 5 rounds for 18.00 ouch .

drdarrin@sbcglobal.net
08-02-2012, 6:09 PM
Drdarrin; I would NOT even contemplate a shot close to maximum range for any big game for any reason other than putting down a wounded animal. I have always hunted the high desert in Nevada and Utah and only once in 30 years have I shot anything at over 100 yards. In the high sage and chapparral, distances are deceiving to easterners (like my brother-in-law) and once in a while kill shots at extreme ranges are ARE called for. THAT shot is why I use this system.
I do appreciate you calling me on the distances....... I should have made it clear that I dont condone extreme shots just to fill a tag.
Most importantly....... the system WORKS. For me at least. :D

Wasn't trying to suggest that you advocated anything other than your sight in procedure. I "assumed" that you might be one of those long, long range shooters. My mistake. If your method works for you, it works for you.

But, I would really suggest shooters, particularly new ones, check out the values this calculator returns. http://www.handloads.com/calc/

Given your sight in, your mid-range should be ~30.25 high at 300 yds. At 100 yds, you should be hitting over 14 inches high. This not intended as criticism, just the facts.

I grew up hunting in SE Idaho; I know how deceiving the distances can be.

Coyotegunner
08-02-2012, 6:50 PM
For all my rifles I am 2 1/2" high at 100yds with standard reticles.Anything mildot I zero on the crosshair at 100.The 300 winmags and 300 rums are elk knockerdowners using the crosshair at even 400,if you do not leave the fur.

86mcss
08-02-2012, 8:44 PM
At 100 yards, I zero at 2" above the bullseye.


same.

JGon
08-02-2012, 9:13 PM
I like to have my .270 at 2.5" high at 100 yards. Definitely helps to understand the trajectory of the load...and I have to refresh myself on that info and shoot (target) accordingly when I can. Realistically for me I can expect anything from 50 to out to 400 yards for a shot on game. Taken a couple of bucks out to 400 yards quite cleanly in the right situation...although not preferred or suggested for that matter. I haven't been shooting as much lately, so right now I wouldn't want to take a shot past 300.

Shoot-it
08-03-2012, 10:36 AM
I went out to my 120 yards range and checked my zero well i need to shoot again i was in a hurry the sun was setting and i rushed it.
Here is the 139 gmx shot into plow steel plate
http://i42.photobucket.com/albums/e338/shoot-it/copperslug.jpg
I have a few alfalfa fields with a large hill of sand about 12 feet high to test my prejectery but still i am a little scared shooting the rifle out here.

FLIGHT762
08-03-2012, 11:18 AM
If you have a Duplex type reticle, you can try this. Set up a 100 yard target with a large blank target paper and measure off a few vertical lines, 3",4", 5" etc. that you will be able to see at maximum magnification. You will need to measure at maximum because most regular scopes are Second focal plane.


There is a space between your your center horizontal cross hair and the tip of the lower thick duplex that comes to a point. Measure that space accurately at 100 yards. Most of my Leupold scopes measure at 3.5". Other brands will vary.

You can use that inch measurement as a MOA (minute of angle) measurement.

As an example, I can use my 30/06 with a dead on 100 yard zero using 150 grain bullets. If I use the tip of the bottom (lower) duplex point, it gives me a 3.5 MOA elevation aiming point. 3.5 MOA will put me about dead on at 300 yards with that load. I tried it out and it works. You just have to have a precise measurement on that space on maximum power. You can then check you particular load with a ballistics program with whatever that space measures out to in MOA. It will be accurate at one specific distance.


If you have the time to test this and verify, This turns a regular Duplex cross hair into a one point ballistic reticle. It beats guessing at a holdover.

Ism415
08-03-2012, 3:23 PM
2" high

frankm
08-03-2012, 3:27 PM
At 100 yards, I zero at 2" above the bullseye.

Yuppers. That way your sniper, er, hunting rifle is gtg.

wjc
08-03-2012, 5:09 PM
Yuppers. That way your sniper, er, hunting rifle is gtg.

What rifle?

...oh, I lost that in a boating accident.

:hide:

Sheepdog1968
08-03-2012, 11:48 PM
I go to a range that has 200 yards and zero it at that distance.

jabell
08-04-2012, 9:15 PM
A famous African guide from history once said most game is missed due to hunters trying to make shot adjustments in the heat of the moment.
He did not advocate shots beyond 300 yards though.
With that said he had all his clients zero there rifle's in at one inch high at a hundred yards and from then on out forget all about making any calculations and just concentrate on putting the crosshairs in the engine room & squeezing off a smooth shot.

hybridatsun350
08-04-2012, 9:27 PM
2" high at 100 yards/approx. 200 yard zero, and where in Northern California do you shoot farther than that? :p

dirtydrew
08-05-2012, 9:24 AM
Point of aim/ point of impact at 200yds, and about 1.75" high at 100yds with my .308 and 150gr hornady