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Nikon BDC circle spacing?

 
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  #1  
Old 06-15-2010, 02:30 PM
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Location: Anchorage, AK
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Nikon BDC circle spacing?

Does anyone have the measurements for the BDC reticle? I'm going to the range on Thursday but I'd like to know the spacing now so I can build a drop chart beforehand. Can anyone tell me the exact distance between the circles at 100yds? Your help would be greatly appreciated. The scope in question is a 4.5x14 Buckmasters.
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  #2  
Old 06-15-2010, 03:12 PM
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Re: Nikon BDC circle spacing?

Hopefully this will help:

http://www.nikonusa.com/fileuploads/pdfs/BDC_manual.pdf

Good luck!
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  #3  
Old 06-15-2010, 03:13 PM
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Re: Nikon BDC circle spacing?

Im not exactly sure of the spacing, but if you know your load data give this program a try. It will tell you what circle to use for what distance at any given power. www.nikonhunting.com/spoton
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  #4  
Old 06-15-2010, 03:18 PM
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Re: Nikon BDC circle spacing?

It depends. Supposedly(non magnum) its 0at 100, top of next circle is 175, center is 200, bottom of circle is 225, between the two is 250..... and so on. Trajectory will depend alot on what wt. bullet, and at how fast. The little booklet contains all this info as well as ''tuning'' your drops...... I dunno..... I have one, but its not mounted. I trust my Burris in my 270wsm with 140 Accubonds. Its pretty darn close. But the circles in the Nikons.... I just dont know.
The only real way to find out is to shoot it and record the data under multiple conditions, and elevations. I have done this with my Burris for a couple years, and have come to know it pretty well. I got a great deal on the new Nikon, so I bought it. But..........the circles drive me nutts. I havent had the heart to mount it yet to check the actual drops. Good clear scope for the $ tho.
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  #5  
Old 06-15-2010, 03:36 PM
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Re: Nikon BDC circle spacing?

I've got the bdc manual and it is really vague. I ran my ballistics through 2 separate programs and have the data for the load (.223 50nosbt @ 3368fps), but what I need to know is if the first circle is 3" below the center or 2" etc...Nikon doesn't say anywhere. The only foolproof way is to aim it at a target 100yds away and take notes. Thanks for the suggestions.
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  #6  
Old 06-15-2010, 03:49 PM
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Re: Nikon BDC circle spacing?

Nevermind that last. Thanks adam330 that's exactly what I needed!
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  #7  
Old 06-15-2010, 05:22 PM
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Re: Nikon BDC circle spacing?

At 14x it's--

2 IPHY
4.5
7
11
15
to center of dots and the subtension of the stadia lines are 0.5 IPHY thick. Nikons catalogs have the best Spec Pg. in the business. They're very handy for subtension info.
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