Targeting my CZ.22 RIMFIRE RIFLE

[earthmover]

Hello all,i set out yesterday to target my rifle in at different distances,using the subsonic rounds,first i used CCI subsonic and shot 5 rounds at a target 25 yards away and then 50 yards and then 75 yards and finally 100 yards,at 25 yards she was hitting dead center of the target,same at the 50 yard target,but at the 75 yard target she was 1 inch below the center and at the 100 yard target she was 3 inches below the center,what i want to know is this normal for a .22 rimfire rifle.

 

[rangerruck]

you should be using standard or hi velocity rounds.

 

[atblis]

Hmm

That actually sounds a bit flatter than I'd expect for subsonic 22lr rounds.

Find a free ballistics program online and play with it a bit. I think Remington has a free trial. It'll show you trajectory relative to a line of sight corresponding to your sights.

EDIT: The Remington program doesn't have 22 lr ammo in it.
Here are some 22 lr trajectories
http://www.gunsmoke.com/guns/1022/22ballistics.html

 

[cmidkiff]

Dead on at 25 and 50, 1" low at 75, 3" low at 100...

Sounds pretty much ideal to me!

That's a pretty straight curve for a .22, especially a subsonic.

Does that rifle have a range adjustable rear? I'd try to find out just how many clicks, or notches, or whatever adjustment it has, it takes to get you back to zero at 100, and mark that spot.

I can't imagine needing anything more than a top edge hold for 75 yards... a 1" drop isn't difficult to compensate for. A 3" drop at 100... depending on what you are aiming at, it might be appropriate to bump the rear sight up a little.

My T/C Classic is a half inch high at 25 yards, dead on at 50, and a little more than 4" low at 100. (I don't shoot at a measured 75 yard range). That's with Winchester SuperX High velocity ammo. I'm pretty happy with those results. I'd be overjoyed with yours!

 

[Avenger29]

If it's a CZ 452, it has tangent irons like a milsurp rifle. It's range adjustable...some of the best irons on a .22 rifle these days...

 

[earthmover]

yes lads i will try that,i for got to say i targeted it in with the sound modifier attached,without the modifier she is one inch below the target at 100 yards and bang on at 75 yards.

 

[hksw]

you should be using standard or hi velocity rounds.

Why?

 

[csmkersh]

If it's a CZ 452, it has tangent irons like a milsurp rifle. It's range adjustable...some of the best irons on a .22 rifle these days...

Not so on all models. For instance the 452 American has no factory sights; they assume you'll scope it.

As to the CCI subsonics, very good preformance in the OP's CZ. I might suggest trying Federal 510s, Winchester DynaPoints or Wolf Mhich will be, by far, the most expensive of the lot.


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[Avenger29]

Not so on all models. For instance the 452 American has no factory sights; they assume you'll scope it.

Oh, I know, I figured the OP might be using irons. I also didn't realize that the OP was using a supressor...that does change the shooting characteristics some...

 

[IndianaBoy]

you should be using standard or hi velocity rounds.

Why?

The iron sights on a CZ Lux are graduated to the trajectory of high velocity ammo. I can reliably hit a milk jug at 200 meters with bulk high velocity.

Subsonics will hit lower at longer ranges, because they don't shoot as flat. Mine does great out to 75 meters with subs. Good enough for squirrel heads!

 

[Damon555]

Sounds good to me......Try out some standard velocity rounds....You might be able to gain an inch or so at 100.....Enjoy your CZ, they are excellent rifles.

 

[Macchina]

CCI standard velocity... Zero at 50 yards. I find most of my shots at squirrels are within 30 yards. I would never zero at any range that would force me to compensate for the close range shots. When hunting small game, part of the fun is getting close enough to make a clean headshot. I bought a .22 semi-auto this year because it was getting boring shooting squirrels with my laser (.22 Mag bull barrel marlin).

 

[earthmover]

thamks lads,i was out earlier this evening and i used eley subsonic in my .22 lr and she was dead on at 25,50 and 75 yards,but at 100 yards she had dropped a inch and a half,i have always been shooting with eley subsonic but was told that CCI were better so i thought i would give them a go,but they proved to be not as good as the ELEY.

 

[22-rimfire]

Sounds about perfect to me. I think I'll buy some of the CCI's subsonics.

What kind of groups were you getting with the CCI's?

 

[hksw]

The iron sights on a CZ Lux are graduated to the trajectory of high velocity ammo. I can reliably hit a milk jug at 200 meters with bulk high velocity.

IMO, find the load your gun shoots the best with. Disregard the graduated numbers on the ladder if they do not match up to the different distances your load zeroes at when you re-adjust the rear sight. Note the ladder positions of your chosen load's zeroes at different distances.

 

[rangerruck]

just got back.... what indiana boy said, the sights are graded for a higher velocity round. Now then, if you wanna go silent, then stay with the subs, but the standard vels might give you just the same amount of silence performance.

 

[earthmover]

well uk-rimfire.with the cci at 25,and 50 yard the grouping is very tight,at 75 it is not as tight but grouped in around one and a half inches,and at 100 yards grouped around two inches,this rifle is scoped when i was targeting it in,with the eley subsonic,she was bang on at 25 50 75 yards and the grouping was about 1 inch at 100 yards,so i think the eley are the ones for the bunnies that i use it for.