sighting in "longer" ranges

tch1717

tch1717

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OK, my question is (i'm fairly new to "longer" shooting), is there an "easy" way to sight in my 22-250 (zero'd to 150 or 200 yds)(for hunting purposes), when all i have available to me is a 50yd and possibly a 100 yd RANGE ? should i be looking for factory ballistics ?
 
I don't have any precise formula to give you but try either dead on or 1/2 inch low at 25 meters....I think it will put you a couple inches high at 100 and most likely good out to 200 meters.

Or just get it shooting 2-3 inches high at 100 meters.
 
I'd use a ballistics program and make the settings at the distance closest to the distance you need to zero it at. So if 100 yards is available to you, and you need to set it 1.5-2.5" high at 100 to be zero at 150 or 200, then that's the way I'd do it. No matter what, its still an estimate and you are best off testing its actual performance. I set up my 223 2.5" high at 100 and it shoots "close enough" at 200 yards. It all depends on how accurate you need to be.
 
Try JBM Small Arms Ballistics, online calculator. Set it for zero at 200 with your bullet, and see how high it needs to be at 100.
 
how much do you know about the ammunition you are using?

weight and muzzlevelocity are good thing to know. then you go to
http://www.hornady.com/ballistics/ballistics_calculator.php
and fill in the blanks, choose the distance you want to shoot at and hit enter.
print it and go for it.

Btw, the reloading data found in the Hornady book combined with the bullet data are very close to perfect. Today I had the oportunity to shoot my custom load through a chronograph. The loading data for a 24 inch barrel was 2650 fps I have 26 inch barrel and the velocity was average 2670 fps. I am a happy camper now.
 
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not 100 percent sure yet which load i'll be using, it will have to be factory to start (seeing as i do not have the equipment yet to reload 22-250's), can anyone recommend a good round that is "reasonably" inexpensive, that will do fairly well out to 200-300 yds ?
 
If you have the scope height, bc and velocity, you use a ballistic simulator program with a ballistic drop reticle, use a target with 1" squares on it, then run it for 50 yards with a 300 yard zero, and read off the point of impact (high).
zero.JPG

Or read it off a text table and visualise.
 
I find ballistic table's to be very useful, and an excellent place to start. Remington.com isn't bad for there factory stuff. Guns and ammo's website has a little wider variety. But trigger time trumps'um all.
 
saskgunowner101 said:
I don't have any precise formula to give you but try either dead on or 1/2 inch low at 25 meters....I think it will put you a couple inches high at 100 and most likely good out to 200 meters.

Or just get it shooting 2-3 inches high at 100 meters.
Click to expand...

Actually, it should be between dead on and 1/2 inch high. Half an inch low at 50 will barely get the bullet above the line of sight at 100 yd. BTDT. :)

I would sight it dead on, and then zero it on a target at 200 when I went afield.


Ted
 
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Maybe I'm remembering wrong.....it seemed to me I was putting my .223 on paper after a scope swap and it was at or 1/2 inch below the bull @25 meters and it put them 2 or 3 inches above @100 meters. I was wrong once before though....:D
 
I was wrong once. It was back in 1966. Thought I was wrong about something, but it turned out I was right! :D ;)

Seriously, I have seen quite a few rifles sighted low at 50, and only the very fastest, such as your 22-250, will make it above the LOS at 100.

Ted
 
as the rifle sits right now (i haven't touched the scope from the previous owners settings), at 50 yards ; i put the crosshiars in the middle, and it's hitting about 1 1/2" low (but center left/right), i aim the 'hairs 1 1/2 " high and i'm putting the bullets dead center.
 
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