50 yard zero .308

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lobo9er

lobo9er

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I have 50 yards, a ruger american and 100 rounds or so of hornady american white tail 308 150 gr. I am going deer/blk bear hunting out of town this weekend and may only be able to zero my rifle with 50 yards. currently I am 2 inches high at 50 yards. I was thinking 1/2 inch high at 50 would be good. more than likely heavily wooded area. shots will be with in 100 yards I have been told. I maybe able to take a few shots at a friends farm tomorrow where there is 100+ yards, but all depends on work and weather. so if that happens I am going for 2 inches high at 100. Any thoughts?
 
I've always been told that you first zero at 25 yards, and this is generally the same zero you'll use at 100 yards. I would go with that zero, and not trust a 50-yard zero.

YMMV
 
A 50 yd zero will put you back on near 200yds... 1/2" low at 50 will give you near 100yd...
 
Sight it in 1/2" high at 50 yards.

That will give you approximately a 175 yard zero, and a MPBR of 200.

Meaning the bullet will never be more then 3" above or below the line of sight out to 200 yards.

rc
 
thanks guys I think 1/2 high at 50 is gonna be my plan. If my shots are within 100 yards I suspect I will fill my freezer.
 
As a general rule for common calibers a good 50 yard zero will be close to the "point blank range" where aiming dead on will be +/- 5" in elevation from 0-250 yards.

I've certainly verified this with 50 yard zeros for 5.56x45, .308, and 7.62x54R shooting ~250 yard steel targets.

Windage is your real issue. If you have a decent range estimate you can easily handle the hold over/under. Wind estimation is what separates the men from the boys.
 
You provide no data as to altitude, temp, etc. That said, a .Hornady .308 Win 150 gr Interbond at 2700 fps sighted in at 200 yards will be 1" high at 50 yards. I sight all my hunting rifles of non-magnum caliber at 200 yards which give me a max. point blank range (plus/minus 3" from point of aim) of roughly 250-270 yards. If you sight in at roughly 3/4" to 1" high at 50 yards, you can shoot at a POA out to 250 yards.

Good luck hunting.

Harry
 
thanks again everyone. I am 1/2 inch high at 50, same hole. Hopefully I can post a nice buck pic after the weekend. still gonna try to take a couple shots at my friends but if not I think I am good. pie plate all day at 100 I am sure. thanks again thanks for wishing me luck too hopefully luck is on my side and a buck is in range! :)
 
All the luck in the world!!

You got no excuse to miss at 100 now except 'buck fever'!! :D

(Still like to see you check it at 100 though!)

Waiting for the pictures which I'm sure will be forthcoming!!!

Good luck man!!

rc
 
guys keep in mind that inside 100-200 yards the caliber doesn't matter nearly as much as the height over bore of the sights. the 50-200 yd zero thing is based on a roughly 2.4" sight height on an AR15 which is unusually high due to the fact that the receiver extension (aka buffer tube) is straight behind the action which causes the stock to be level, as opposed to most hunting rifles which have a comb that drops considerably, allowing iron sights to be placed directly on the barrel and receiver. you won't get a 50-200 yrd zero like that.
 
I guess I don't trust my aim and I have the range available to shoot at. I don't trust a zero until I have shot at that range. That is obviously the best way to go. Then you shoot at other ranges and see what the difference is. But not everyone has the time or place to shoot.
 
Here's what I did. I zeroed my GSR to shoot close to dead on at 25 yards. When I got to a 200 yard range, a couple of clicks put me dead on at 200. This gets me +- 3" from point blank all the way out to 245 yards or so.

If I can't get to within 245 yards of my deer or whatever, I need forget marksmanship for a bit and work on my actual hunting skill.
 
Zero

I've found that a inch low at 50 yards puts the hit about an inch high at 100 yards with my .270,.308 and 30-06,That's as far as I' prolly ever shoot . hdbiker
 
2 inches high at 100 will put you on target at 200 according to Hornady's web site. Assuming your scope it 1.5" above the bore.
I wouldn't worry too much if you're only shooting to 100. The kill zone on a deer or black bear is big enough for a bit of error.
 
sweet thanks again just checking in one last time, gotta finish packing for the early car ride. I know shooting at 100 is the best option but it didn't happen, I think I'm good if the shot arises, am looking forward to time in the woods out of cell phone range regardless! :)
 
Depends.

Most charts are calculated with the center of the scope 1 1/2" above the center of the bore. The Nikon scopes with BDC are sighted in at 75 and the first circle is around 200 yards. That is with a scope mounted 1 1/2" high. When I sighted in at 75 yds I was about an inch high at 100 and on at 200 yards . The first circle put me on around 300. I scratched my head until I realized that the scope was mounted closer to 2" high.

Open sights are harder to calculate when they are on 3/4" above the line of bore.

I would sight it dead on at 50 and not worry about it until I had a chance to shoot it at 100. That sightin should handle any shot that you might have out to 150.
 
well no shots fired :(... :) all good though beautiful weekend in the woods. Ran into other hunters all with the same story. went to a local watering hole and everyone said its been scarce. Last winter was pretty harsh and killed off a lot of fawns and weaker deer. But had a great time. thanks again everyone. i will upload a few pics of my view if anyone wants to see from my makes shift blind.
 
lobo9er:

Good attitude!

The "hunt" includes so much more than that split-second trigger-pull. I enjoy the planning, sighting-in, practicing, the drive, meeting others, and yes, just being in the wild. You still went hunting!

Congrats on that. Photos are always welcome and appreciated at THR.

Geno
 
Well now is time to test your zero then. No time like the present, sucks that it was a bust but could be for the best.
 
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My view for a weekend with out cell phone coverage. No complaints.
 
The Oelier Ballistic Explorer shows the second crossing of the line of sight at 125 yards, and about 2.75 inches low at 200. Zeroing about 2/3s of an inch high at 50 yards would put you dead on at 200.
 
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