I believe that would depend on muzzle velocity and the vertical distance from your barrel to your sighting device.

 

CCI what? Mini mags, SV, Quiet, etc? Plus the above comment about scope height.

 

Bullet weight also !

36 or 40 grain?

 

Mistype. Meant 25 yd

 

Inch low at 59 , 3 inches low at 75 and 9 at 100.

 

There are online ballistics calculators that will create a bullet drop chart once you input the ammo data, muzzle velocity, distance from bore centerline to scope, etc. Google is your friend.

 

SV out of 16-20 inch barrels will be pretty flat between 25 and 50 yards. At 100 yards the drop is around 9 1/2 inches. 22 rimfire starts to go to sleep around 75 yards or so. The BC is the culprit. It just goes to sleep. It is not the rainbow arc depicted on the ammo box.

 

Elevation of the zero target is critical.

 

This dope sheet is zeroed at 50 yards and only .33 high at 25 yards. I believe I was shooting CCI SV at the time I made it. It should give you an idea.

 

I'm guessing you enjoy shooting the little metal critters also.

 

With a 50 yds zero, I'm typically 8-10 inches low at 100 depending on what ammo I'm running.

 

On the paper, if you're lucky. The trajectory is probably still going up at 25 yards. It's possible that the bullet will be coming down and also zeroed at 50 yards, which would have been a better distance at which to zero in the first place. That said, I believe there is no such thing as a "50-yard" zero because the trajectory is so flat there you could actually be zeroed several yards one side or the other from 50. Which doesn't matter until you try to predict where you'll be at 75 or 100.

So if you want to know where you will shoot at 100 yards, go do it.

 

Of course there is a 50 yard zero. That is simply when you zero it at 50 yards. It doesn't matter that the trajectory isn't steep there, it is still a trajectory. If you zero at any distance and then try to predict where you'll be at any longer distance you have to know the trajectory all the way to the longer distance. This means you need to know the velocity at some point and the ballistic coefficient of the bullet.
And yes, it is always best to zero at the distance you are interested in shooting.

 

aaaa

 

That was a great showing of the "drop".

 

Four targets, four ammo types, four distances. Took awhile but it was fun and the results were interesting. Stock 10/22 with factory SS tapered bbl.

 

Your work reflects my findings as well. However, I use a 50 yard zero and have about a 9 inch ( + or - 1/2 ") . Now I am curious how you get a 2 inch difference. I have done the test with CZ's , Ruger 10-22 and Winchester 52 and all are about the same spread. Ammo is CCI SV, Midas Plus X, Tax 22 and a couple of other standard velocity with a stated speed of around 1050 to 1080 fps.
Oh well, more swamp gas for me to chase. It gives this old guy a purpose.
It is all very interesting.
Might need to buy a chronograph to sort it out.

 

What kind of a drop are you seeing with CCI SV from a 50 yd. zero to 100 yds.?

 

I sight in at 25 yards with Ruger 22 charger and red dot. CCI SV 1070 and Subsonics 1050. Identical at 50. Slightly higher and hits at 100, of course not as accurate. CCI is definitely my go to sight in ammo regardless of what I experiment with.

 

well and so... I read this thread. I'll answer the OP's question as best I can: (there's no quick answer)

You need to understand trajectory. Each type of CCI ammunition has a different trajectory.
What that means is that the bullet travels in a vertical arc. It starts out from the barrel going
straight, and then it drops with yardage, as velocity drops.

When you sight in, what you are doing is connecting the line of sight with the trajectory.
If you use a scope (like I do) you have to know how far above the bore your scope's center is.

Let's assume 1.5"... (like mine)
If you look at the target through your scope, your line of sight is about 1.5" above the straight line out of
the bore.

When you adjust your scope so that your bullets hit the point of aim at 25 yards, then the arc of the trajectory
carries the bullet up, and then down as velocity decays. You can look at trajectory figures for the CCI ammunition
you have selected... those will tell you how high your bullet will fly at 50 yds when you sight your rifle in at 25 yards
and the trajectory figures will tell you how low your bullet will drop at 75 yards with the same zero.

Here's a link... (truly, you have to understand all this if you intend to hit your target beyond 25 yards)

Buy Standard Velocity 22 LR Ammo | 40 Grain, 1070 FPS | CCI Ammunition

Shopping for the Standard Velocity, 22 LR, 40 Grain, Lead Round Nose, 1070 fps - Learn more about the latest Standard Velocity and other hunting or shooting gear at CCI.

www.cci-ammunition.com

On this site, you'll see a graph that shows how the bullet loses velocity (and drops) with yardage.
"Sighting in" means that you adjust your scope so that your bullet hits the point of aim at 25yards
or at 50 yards.

When you understand trajectory, you see that when your bullet hits the point of aim at 25 yards, it is rising.
The same when it hits the point of aim at 50 yards. You've adjusted your sights so that when you look at
the target (and lay the cross hairs at six o'clock on the bullseye) your bullet hits the target high enough to
make holes in the bullseye. What does it do before and after the measured distance, eh?

Here's the answer: When you understand trajectory, you see that if you sight your weapon in so that your
bullets hit the point of aim at 25 yards, it is rising and will rise more, out to maybe fifty yards. Then it begins
to drop. It drops fast after 75 yards, such that it might be 9" below the point of aim at 100 yards.

To me, that means that my 1022 is a 50 yard gun. I don't mind this, because anything I might shoot at with
my 1022 is not likely to even be visible beyond 100 yards. ...talkin' gray squirrels, cottontails etc.
There are members on this forum that post threads about "Long Range .22 shooting" which is incomprehensible
to me. If I wanted to shoot at something further away than 75 yards, I'd reach for a different weapon.
Lucky me, I have other rifles that can shoot much further away than a .22LR can.

It comes back to trajectory. When you understand that a .22LR bullet will be dropping by 100 yards and might hit
the target 9+ inches low at that range, then you can appreciate the trajectory of the .223/6.56mm cartridge.
A centerfire .22 caliber cartridge like the .223 has a muzzle velocity much higher than does the humble .22LR.
So it has a much "flatter" trajectory. If I sight my .223 in at 50 yards, the flat trajectory of the 62 grain bullet
sent downrange at 2700 FPS means that I don't have to worry about bullet drop out beyond 200 yards.

The same for other centerfire cartrtidges... I sighted my 7x51mm deer rifle in at fifty yards first. When I fired at
a target at 100 yards, I found that the bullet hit very close to the point of aim, which means that it wasn't falling
very fast yet. So I sighted my 7x51mm deer rifle in to hit the point of aim at 100 yards. That means that the bullet
was still rising, it hit 1.5" above the point of aim at 100 yards. The "flat" trajectory of the 7x51mm bullet means that
I was dead on all the way out to 200 yards and a bit beyond. I took a buck at that range last November, with one
shot at about 200 yards. Studying the trajectory curves helped me do this.

It isn't different for the .22LR, it's just an exercise in velocity versus range. I hope this answers your question.

 

I live in SD and it seems the wind is always blowing after 9 am. I will sight in about 3/4 inch high at 25 knowing I’ll be around a 1/4 low at 50. For me, a 22 is a 50 yard gun 90% of the time.

100 yards here is tough unless you get a day with no wind. I use SV ammo in my match guns so it’s pretty similar on drop so I can easily just my scope.

Last time I shot 100 yards I shot a great 10 shot group of around an inch or so then the wind picked up and horizontally strung me open to 2 plus inches.

Reminds me why I shoot CF too….

 

CCI SV avgs 1069 out of my 10/22 50yd zero 75yd -1.875" 100yd-6.625" 125yd-13.75" SKLRM only drops 12" at 125yds, with less vertical dispersion.

 

Drastically depends on how high your scope is above the barrel. Will need to test at each range and take notes about what it does with your intended ammo.

 

35. A little high at 50 and back on at 75.

 

I zero 1 1/4 inch high at 25 m to be close to 75 m zero with Norma Match, when switching scopes etc.