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Nightforce problems.???

 
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  #29  
Old 12-04-2002, 02:02 AM
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Join Date: Nov 2002
Location: St. Louis
Posts: 189
Re: Nightforce problems.???

The NP-R2 really has changed the way I shoot long range. Holding over becomes much like archery... Quite easy to shoot one target at 100, another at 550, the next at 350, etc, without the "click and count" routine...

I love the idea of the stationary optics - no mechanical intervention required to shoot "way out there"... Great stuff!
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  #30  
Old 12-04-2002, 02:51 AM
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Join Date: Jun 2001
Location: Palmer, Alaska
Posts: 2,539
Re: Nightforce problems.???

I'm not sure I follow you completely.

This is the drop chart the Oehler Ballistic Explorer gives me for a BC of .507 at 3380 fps at standard conditions.

100= -8.7MOA
200= -7.7
300= -6.2
400= -4.4
500= -2.3
600= 0.0
700= +2.5
800= +5.4
900= +8.5
1000= +12.0

I guess I expected to see the 100 yard increments fall on the 2 MOA tic marks magically.

Take the 800 yard hold over amount of +5.4MOA for example, are you supposed to hold 2 ticks (2 MOA per tic) above for 4 MOA and estimate the other 1.4 seeing's how the next tic is at 6 MOA?

When you get the load tuned right, the reticle will be more accurate than the 1/4 moa click resolution on the scope!

Can you explain how? I don't see why.

The vertical shot tic mark, ( the very top line in the R2 is nothing more than the sight line which is parallel to the bore line when the scope is zeroed @ 600 and on full power.

The program indicates 71.45" of drop at 600 yards. The bullet would hit around 11.45" low if the 10 moa tic mark above the center crosshair was was following the bore, true?

11.37 MOA is needed to account for the 71.45" of drop at 600 yards is all I'm trying to say, so it would appear that the bore line is somewhat higher than the 10 MOA tic mark if actually zeroed at 600 yards. It is close though. Correct me if I'm wrong.

The 220 smk is too heavy to integrate with the reticle below 6,000 ft. altitude

What happens if it is used? Does the 100 yard hold under go beyond the 10 moa tic mark?

We have to find you a load with the 180 that will get you between 3360 and 3400.

Can you explain why the 3200 fps load will not work as well.

Sounds very interesting so far. Thanks
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  #31  
Old 12-04-2002, 03:25 AM
 
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Re: Nightforce problems.???



[ 07-12-2003: Message edited by: S1 ]
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  #32  
Old 12-04-2002, 03:39 AM
 
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Re: Nightforce problems.???



[ 07-12-2003: Message edited by: S1 ]
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  #33  
Old 12-04-2002, 03:47 AM
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Join Date: Jun 2001
Location: Palmer, Alaska
Posts: 2,539
Re: Nightforce problems.???

You must have posted as I was typing, slowly [img]images/icons/grin.gif[/img] .

It took me a minute to see what you were doing dividing by two, and at the same time keeping the results the same.

You are ruducing the object size number in half, and tics are 2 MOA apart, so counting them as "one" reduces them in half too. This does make it easier in the head. [img]images/icons/smile.gif[/img] Thanks for the tip.

I've noticed that a mature moose is about 1/3rd deeper through the chest than a 2 yr old. I was looking at two different ones at 400 yards ranged with a laser, the reticle clearly showed the difference and by how much too. [img]images/icons/smile.gif[/img] I think it was about 6 ticks vs. 4 ticks or real close to that.

We've ranged rims on our vehicles (no one in them of course) out past 1000 yards with the R2 while using the lasers to verify the distance and always were +-15 yards and we weren't even using a very good rest either.

Another pointer too is if you have a laser range finder and can range an animal accuratly, you can then measure it's head size, ear length, chest depth and OAL etc using the R2 reticle with amazing accuracy.
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  #34  
Old 12-04-2002, 03:55 AM
 
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Re: Nightforce problems.???



[ 07-12-2003: Message edited by: S1 ]
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  #35  
Old 12-04-2002, 04:15 AM
 
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[ 07-12-2003: Message edited by: S1 ]
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