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Old 07-08-2013, 07:00 PM   #1
Stangler
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Default Sighting in a Reflex sight

I have a Ruger 10/22 that I just upgraded to a new stock and sight. I really like the reflex sight, but I'm having trouble with sighting it it. I can get it zero'd at either 10 yards, or 25 yards, but either or, not both. If I sight it in at 10 yards, it shoots high at 25 yards (about 8-10" high) I believe this is because the sight is on top of the gun, and not using 2 points of reference (normal sights use the V near the action and the i at the tip of the barrel). Other than lowering the sight closer to the bullet centerline, is there a fix for this?

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Old 07-08-2013, 07:54 PM   #2
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Default Re: Sighting in a Reflex sight

The bullet is probably rising. I sight .22s in at 50yrds.
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Old 07-08-2013, 08:01 PM   #3
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Default Re: Sighting in a Reflex sight

That's what I am thinking. If the bullet travel is a straight line, and the sight line from is a straight line, it's forming a triangle. I was hoping it would be more level than that, and I see this type of sight on a lot of different guns. Is there any other way to minimize this effect? I know once you get out to 50yards, the bullet will start to drop, but it seems a bit touchy to 8" difference between 10 and 25 yards, and it's hitting high at 25 vs 10...
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Old 07-08-2013, 09:25 PM   #4
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Default Re: Sighting in a Reflex sight

As the bullet leaves the muzzle it will rise before it starts to drop
http://www.google.com/imgres?imgurl=...QEwAQ&dur=2652
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Old 07-08-2013, 09:43 PM   #5
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Default Re: Sighting in a Reflex sight

It is just one of those funny things with ballistics. If you sight a rifle in at 100 yards, it will be low at 25 yards.
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Old 07-08-2013, 09:46 PM   #6
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Default Re: Sighting in a Reflex sight

Bullets don't fly in straight lines. They travel in arcs - decreasing radius arcs, specifically.
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Old 07-08-2013, 10:01 PM   #7
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Default Re: Sighting in a Reflex sight

All good info, but what I'm looking for- Is this 8" difference for that distance normal? Doesn't seem so based off those specs...

http://www.google.com/imgres?imgurl=...QEwAQ&dur=2652


Or would it be less noticeable if zero'd at 50 or 100 (looking for best sight in between 10-50 yards)

My other 10/22 with the same ammo does 1-2" groups at 50 or 100 yards pretty easy.

Seems to be a big rise between 10 and 25 yards...

Thanks for the input guys
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Old 07-08-2013, 10:10 PM   #8
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Default Re: Sighting in a Reflex sight

I can't speak for the drop between 25 and 10 yards, but I do know that if you move in from 100 to 25 with a 100 yard zero, there is about a 3-4 inch difference in the impact. Obviously, the closer to the centerline of the bore you can get the sight, the better. We zeroed our Eotechs on our MP5s at 15 yards, and there was about an 8 inch difference in impact at 50 yards.
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Old 07-08-2013, 10:26 PM   #9
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Default Re: Sighting in a Reflex sight

If you zero @ 50y, you will be between a maximum offset of sight height at the muzzle and dead on at 50. After a certain point, whether zeroing very close or very far, you will have two points in which the bullet intersects with Line of Sight, due to the high angles required.

A 10y zero will be quite high at 25y, but a 25y zero will be off by much less at 10y.
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Old 07-08-2013, 11:02 PM   #10
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Default Re: Sighting in a Reflex sight

How are you sighting in? I see no supports on the weapon or by it and if your going from free had you may be chasing your tail all day. Here is how I did my GSG with that same sight straight from the box with sand bags.

5 rounds (or as many needed) iron sight to find natural center and find proper weld
attach sight and zero/center adjustments
5 rounds adjust as needed at 10-15yrds
repeat until center
fresh target/area on target 5 rounds 25-30yrds
repeat until center
fresh target/area on target 5 rounds 45-50yds
repeat until center
25yrd 5 round. Should be on center or close. Expect high/low. left/right requires more adjustment.
set range of choosing, rapid dump 2 mags
5 rounds at 50 to verify zero.
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Old 07-08-2013, 11:39 PM   #11
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Default Re: Sighting in a Reflex sight

Quote:
Originally Posted by a_penquin View Post
How are you sighting in? I see no supports on the weapon or by it and if your going from free had you may be chasing your tail all day. Here is how I did my GSG with that same sight straight from the box with sand bags.

5 rounds (or as many needed) iron sight to find natural center and find proper weld
attach sight and zero/center adjustments
5 rounds adjust as needed at 10-15yrds
repeat until center
fresh target/area on target 5 rounds 25-30yrds
repeat until center
fresh target/area on target 5 rounds 45-50yds
repeat until center
25yrd 5 round. Should be on center or close. Expect high/low. left/right requires more adjustment.
set range of choosing, rapid dump 2 mags
5 rounds at 50 to verify zero.
That was about it, but I never got past 25 yards (never played with this style of sight, and Ammo is hard to find, so I packed it in till I could get an answer) It was from a bench, with sand bags. 3 shot/adjust/3 shot/adjust etc.. I'll give it a go again at 50 and see what I get. Thanks!

Nate
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Old 07-09-2013, 12:01 AM   #12
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Default Re: Sighting in a Reflex sight

That set up is what I consider a pinker set up. I never expect to use it past 50 yrds with accuracy. Its just the fun shoot shit rifle I have. If I was looking to go farther I would put on some glass and then not expect anything other than 100 yards with it. I would also build something to shoot a 22lr accurately that far. I have pushed it out to 60-70 yrds and hit steel plate, but its a hit and miss depending on how well you know the weapon. The key is at 50yrds with my GSG I can hit a body target anywhere inside that range with expectations of accurate shot placement. Honestly I only see the round as a 50yrd round anyways. Farther out I will increase in caliber.
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Old 07-09-2013, 12:14 AM   #13
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Default Re: Sighting in a Reflex sight

I can accurately bust clays (and the subsequent pieces) with my .22LR @ 200yds. Zeroed at 50 yards.
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Old 07-09-2013, 01:08 AM   #14
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Default Re: Sighting in a Reflex sight

Quote:
Originally Posted by Donut View Post
I can accurately bust clays (and the subsequent pieces) with my .22LR @ 200yds. Zeroed at 50 yards.
With glass, right?
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Old 07-09-2013, 01:10 AM   #15
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Default Re: Sighting in a Reflex sight

This is my other 10/22. It's for 50+ yards. 6 x18 scope. I can pick off 20oz bottle caps at 100 yards.

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