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Sight 10/22 in a 50 yrds?

This is a discussion on Sight 10/22 in a 50 yrds? within the Ruger 10/22 Rimfire forums, part of the Rifle & Shotgun Forum category; Got my wife a 10/22 and I put on a Simmons .22 Mag 4x32 fixed power scope. I decided to sight it in at 50yrds. ...


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Old January 20th, 2017, 04:30 PM   #1
 
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Sight 10/22 in a 50 yrds?

Got my wife a 10/22 and I put on a Simmons .22 Mag 4x32 fixed power scope. I decided to sight it in at 50yrds. Is this the common recommended sight in distance? If I sight it in at 50yrds, will it be high or low at 100 yrds. I am thinking it will be a bit low, but I am not certain. Any thoughts/ suggestions? Thanks.



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Old January 20th, 2017, 05:14 PM   #2
 
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If you sight it in at 50 yds it will be low at 100 yds. Recommend sighting it in at 25yds to get on target then just sight it in for the range that you be shooting at the most.
Use the same ammo though because changing that will change everything.
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Old January 20th, 2017, 05:31 PM   #3
 
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Originally Posted by gkayea View Post
If you sight it in at 50 yds it will be low at 100 yds. Recommend sighting it in at 25yds to get on target then just sight it in for the range that you be shooting at the most.
Use the same ammo though because changing that will change everything.
Thanks for the info. I wasn't sure how that would work exactly. I have it sighted in at 50 now using Remington thunderbolts. I have heard they lead the barrel up pretty bad, so I am not going to buy any more after this box of 500 is gone. I read a chart where someone suggests sighing an AR-15 in at 50yrds so that it will be high just a bit at 100yrds, but back to zero again at around 220 yards. I was hoping for a similar effect with the .22 lr. I was hoping it would zero again at around 125 yards or so. Is there a chart for .22lr trajectory? Thanks for the response(s).
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Old January 21st, 2017, 08:04 AM   #4
 
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Try this, shows a few different ones.

Rimfire Rifle Ballistics:
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Old January 21st, 2017, 08:16 AM   #5
 
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Quote:
Originally Posted by n5npo View Post
Got my wife a 10/22 and I put on a Simmons .22 Mag 4x32 fixed power scope. I decided to sight it in at 50yrds. Is this the common recommended sight in distance? If I sight it in at 50yrds, will it be high or low at 100 yrds. I am thinking it will be a bit low, but I am not certain. Any thoughts/ suggestions? Thanks.
I sight mine in at 50, my scope has drop markers so any distance becomes easy. for 100 it is two dots low so I move the second one up and I am bang on. I know CCI minimags are about a yard low at 200 so I try to look for something a yard above what I am plinking at at lob them in. Be safe, shoot straight!
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Old January 21st, 2017, 10:40 AM   #6
 
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What are you going to me shooting at? My Ruger has a Nikon Prostaff Rimfire 3-9x40 BDC. The scope is paralax free at 50 yards. That is where I zero the scope. Rimfire standard 22 LR rimfire cartridges shoot fairly flat between 25-50 yards.
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Old January 21st, 2017, 11:23 AM   #7
 
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Quote:
Originally Posted by sr9c sr22 View Post
Try this, shows a few different ones.

Rimfire Rifle Ballistics:
This page is awesome. Thanks for the link!
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Old January 21st, 2017, 11:31 AM   #8
 
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What are you going to me shooting at? My Ruger has a Nikon Prostaff Rimfire 3-9x40 BDC. The scope is paralax free at 50 yards. That is where I zero the scope. Rimfire standard 22 LR rimfire cartridges shoot fairly flat between 25-50 yards.
Plinking mostly... Maybe a squirrel here or there. I thought about one of those nice Nikon 3-9x40 scopes like you mentioned. It will have to wait until I replace the Nikon Prostaff 2-7X32 I have on my Ruger American .30-06. Once I free it up, I will either put it on the 10/22 or put it on My Ruger AR-556. Decisions, decisions. As of right now, I have an old Sears 3X (weaver made) on my AR-556 and I love it. I know I am a noob at all this, but the old Sears 3X seems to work great on the AR-556 zeroed at 50 yards. Thanks for all the wisdom and help.
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Old January 21st, 2017, 11:33 AM   #9
 
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Originally Posted by paulkalman View Post
I sight mine in at 50, my scope has drop markers so any distance becomes easy. for 100 it is two dots low so I move the second one up and I am bang on. I know CCI minimags are about a yard low at 200 so I try to look for something a yard above what I am plinking at at lob them in. Be safe, shoot straight!
I had no idea .22lr dropped so much. Much to learn have I...
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Old January 21st, 2017, 01:56 PM   #10
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n5npo, 100 yards is a lot to ask of any 22 rifle .... especially a 10/22 standard factory model. Groups will spread considerably after 60~70 yards and bullets will drop quite a bit. As you can see in the below chart, if your rifle was sighted in at 50 yards, the bullet would drop about 6" at 100 yards. Further, wind reeks havoc on 22 LR bullets because of the ballistic coefficient and low velocity. 223 Rem bullets travel about three time faster than 22 LR high velocity bullets so it takes the 22 LR bullet about three time as long to reach a distant target. Longer time to target means the bullet is exposed to gravity and wind for a longer period of time, thus the bullet will drops a lot more and will drift more .... depending on wind speed and direction..


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Old January 21st, 2017, 02:14 PM   #11
 
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n5npo, 100 yards is a lot to ask of any 22 rifle .... especially a 10/22 standard factory model. Groups will spread considerably after 60~70 yards and bullets will drop quite a bit. As you can see in the below chart, if your rifle was sighted in at 50 yards, the bullet would drop about 6" at 100 yards. Further, wind reeks havoc on 22 LR bullets because of the ballistic coefficient and low velocity. 223 Rem bullets travel about three time faster than 22 LR high velocity bullets so it takes the 22 LR bullet about three time as long to reach a distant target. Longer time to target means the bullet is exposed to gravity for a longer period of time, thus it drops a lot more.



Thanks for your usual great info, always appreciated


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Old January 21st, 2017, 02:58 PM   #12
 
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Originally Posted by Iowegan View Post
n5npo, 100 yards is a lot to ask of any 22 rifle .... especially a 10/22 standard factory model. Groups will spread considerably after 60~70 yards and bullets will drop quite a bit. As you can see in the below chart, if your rifle was sighted in at 50 yards, the bullet would drop about 6" at 100 yards. Further, wind reeks havoc on 22 LR bullets because of the ballistic coefficient and low velocity. 223 Rem bullets travel about three time faster than 22 LR high velocity bullets so it takes the 22 LR bullet about three time as long to reach a distant target. Longer time to target means the bullet is exposed to gravity and wind for a longer period of time, thus the bullet will drops a lot more and will drift more .... depending on wind speed and direction..

Thanks so much for the info. I do have a question though... If I zero out at 50 yards, then it will also be zeroed at 25 yards? I am asking based the chart you provided. I saw a similar chart regarding 5.56/.223 except that they zeroed at 50 yards and thus it was also at or near zero at 220yrds. I understand the velocity and bullet drop playing in to this, but should I then re-zero at 25 yards so that I will have a second zero at 50 yards? If I first zero at 50 yards, where will second zero be or will there actually be a 2nd zero. I never realized that a .22lr was so weak and limited. I just never sat down and though about it or used any ballistic calculation programs to look at it. Thank you for your time.
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Old January 21st, 2017, 03:53 PM   #13
 
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sight in at 75 yards.
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Old January 21st, 2017, 05:46 PM   #14
 
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Quote:
Originally Posted by n5npo View Post
Thanks so much for the info. I do have a question though... If I zero out at 50 yards, then it will also be zeroed at 25 yards? I am asking based the chart you provided. I saw a similar chart regarding 5.56/.223 except that they zeroed at 50 yards and thus it was also at or near zero at 220yrds. I understand the velocity and bullet drop playing in to this, but should I then re-zero at 25 yards so that I will have a second zero at 50 yards? If I first zero at 50 yards, where will second zero be or will there actually be a 2nd zero. I never realized that a .22lr was so weak and limited. I just never sat down and though about it or used any ballistic calculation programs to look at it. Thank you for your time.
His graph is for high-velocity rounds. But, your reading of the graph is correct. 25 and 60 have the same zero. You'll notice the bullies rises between them only about 3 tenths of an inch. This make high-velocity loads very convenient for shoot squirrels between 25 and 50 rounds.

Standard velocity loads are a little less flat so the zero at 25 yards is three tenths of an inch higher. I usual hold low at 25 yards. On the other hand, if you zero at 25, the bullet hits about 6 tenth of an inch lower at 50 yards. Of course, this all assumes your rifle and target are at the same level. If you wanna shoot up in a tree, you'll wanna use the distance to the base of the three as your guide. This is something an old bow-hunter taught me. But, the geometry checks out. The guy new something on instinct but had no idea why it should be true. But, the solution was 100% correct,
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Old January 21st, 2017, 10:37 PM   #15
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n5npo, The chart I provided assumes the center of the scope is 1.5" above the center of the bore. Scope height will affect the first crossover point, which happens to be at 21.4 yards in the above chart. Chances are your scope is not at exactly 1.5" above bore line so it may cross over a few yards earlier or later.

Your best bet is to let the trajectory work for you. In this case, the "point blank" distances ranges from 16 to 56 yards. This means .... If the target is within this range, and you aim directly at the target .... no hold over or no hold under ..... the bullet will never strike more than one bullet diameter higher nor one bullet diameter lower than dead center. This is well within the "kill zone" for small game and in fact your 10/22 probably isn't accurate enough to keep shots within 1/2" at 56 yards. After 56 yards, you may have to do a little holdover (aim a bit higher). 70 yards is about the max shooting distance for most 22 LRs so at that distance, you would have to holdover about 1.4". So you could say .... your gun would shoot in a channel that is never more than .6" high and never more than 1.4" low from the muzzle out to 70 yards. At 100 yards, you would have to holdover by 6".

If you sight your scope in at a closer distance, you will forfeit at longer distances .... meaning the bullet will cross the line of sight the second time at 44 yards instead of 50 yards so any distance beyond 44 yards will result in more bullet drop. Personally, I think 50 yard sight in for a 10/22 is just about perfect.
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