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Old 08-25-2012, 10:35 AM
scottbcolton scottbcolton is offline
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Default Nikon BDC 150 scope questions

Can anyone please explain to me how to set the spring turrets on the Nikon BDC 150 scope. I see that there are 0,1,2,3,4 under the top turret. What exactly does that represent? Are they for 4 seperate settings? I read that i can set the scope for rapid return to zero etc but, the dicumentation is lacking on how to do it. Lastly, what yardage did you zero your .22 at? Thanks!

Thx
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Old 08-25-2012, 07:00 PM
hkyplr hkyplr is offline
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I can't help you with the scope but I have heard a lot of ppl say they zero at 25 yds. Based on a general .22lr trajectory, you should be about 1" high at 50 yds, close to zero at 75 yds and about 3" low at 100 yds. This is a generalization, but should be close.
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Old 08-25-2012, 07:46 PM
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Close enough for 90 percent of 15-22 shooting.
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Old 08-25-2012, 09:27 PM
TJ X TJ X is offline
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I don't think the numbers have great meaning other than Zero. Once you sight in the scope you can reset the knobs to Zero by lifting up on each knob and turning it to Zero (without changing any setting) . This way it is easy to return to your zero after you make adjustments in the field by turning both knobs back to zero.

I sighted mine in at 50 yards and it seems nearly spot on at 25 yards.
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Old 08-25-2012, 10:03 PM
rraisley rraisley is offline
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Uh, isn't the whole purpose of the BDC to adjust "automatically" for distance, by simply changing to the correct number? I think if you go to Nikon's site, it gives instructions (as should have come with your scope) on how to do it. They have a calculator as well. Basically, you'll end up with something like 1 being for 25 yards, 2 for 50, 3 for 80 4 for 120, etc. that kind of thing (those numbers are all made up by me, but I think that's the idea of it.)

Here's a Manual for a BDC, although it may not be specific to yours.
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Old 08-25-2012, 10:34 PM
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It does do it automatically (without turning any knobs) via the reticle. There are circles that represent different ranges. The website and android app make it fairly easy to determine what ranges each circle means depending on several factors (which ammo and such).


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Old 08-25-2012, 10:52 PM
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Go here http://smith-wessonforum.com/smith-w...4582-p223.html and read my reply in post #16.

The info there that is important to you, is the link to the Nikon Spot On program.

Although the P-22's clicks are 1/4" at 50 yards, once you play with Spot On you will see exactly what each click on the turrets do, especially when adding wind speed and direction to the program.
You can select the "scope dope" to appear on the reticle in either MOA, Inches or 'clicks".

Changing ammo, zero and target distance, as well as ambient conditions (temp, altitude, humidity, barometric presure and etc) will all have an impact on what the BDC reticle means.

Enjoy!!
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Old 08-26-2012, 06:34 AM
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I have the exact same Nikon Rimfire 3-9X BDC 150 scope. Zeroed it at 50 yds. At 100 yds, I've been using the first circle down on the reticle as POI and it's been spot on for that distance. Next step will be to do some shots at 150 and 200 yds and see where that goes.......
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Old 08-26-2012, 09:47 AM
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There are two versions of this scope. One has the BDC reticle and the other has a BDC turret.

For the scope with the turret, you set the BDC turret to zero for fifty yards. Then you change the number for longer distances - 1 for 100 yards, 2 for 150 yards, etc.

The advantage of the BDC turret is that you still use the crosshairs to site the target.


Of course the actual drop will depends on the ammo being used


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Old 08-26-2012, 10:44 AM
dan01 dan01 is offline
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Jajo.....I use the turret BDC on my NcStar much in the same way as you describe......I did my 25 yard zero on turret setting #2.......I click to the higher settings for the greater ranges and the reticle will be on target..........I use the #1 setting for things below 25 yards.
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Old 08-26-2012, 11:32 AM
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Quote:
Originally Posted by dan01 View Post
Jajo.....I use the turret BDC on my NcStar much in the same way as you describe......I did my 25 yard zero on turret setting #2.......I click to the higher settings for the greater ranges and the reticle will be on target..........I use the #1 setting for things below 25 yards.
Great way to describe it Dan. The BDC turret gives you options.

Mine doesn't have the turret, so I shift to the BDC circles below the crosshairs for longer distances.


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Old 08-26-2012, 11:35 AM
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pretty cool scopes from the sound of it.
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Old 08-26-2012, 12:00 PM
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I have gotten such bad reviews on my NcStar scope that I often think twice before posting about it......My NcStar bi pod and single point slings have met with some criticism......I guess because they aren't unnecessarily expensive they are next to worthless........I happen to find them great and am tickled to not have invested a lot of cash in them.
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Old 08-26-2012, 12:10 PM
TJ X TJ X is offline
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I am using the ncstar quick disconnect mount with the nikon p22 and so far it has been working great. Easy on, easy off, seems to hold zero pretty good and good clearance for mbus. At about $30 I think it is great.

After 3 trips to the range with about 750 rounds and taking the scope on and off maybe a dozen times it still seems pretty good.
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