Ballistic Calculators Variation

[rockywlw]

I ran the same settings using the Hornady and Nikon online calculators and there is a lot of difference. The Nikon Spot on shows a velocity lose of only 500 fps in 1000 yards, this can’t be right. I running a 6.5 Creedmoor with a 142 grain HPBT, 580 bc at 2610 fps. The Nikon shows a moa adjustment of 26.42 and the Hornady says 35.3 at 1000 yrds. What’s correct. I have not bought a software program yet, I want to get one for Windows. Thanks

 

[_Windrider_]

I ran the same settings using the Hornady and Nikon online calculators and there is a lot of difference. The Nikon Spot on shows a velocity lose of only 500 fps in 1000 yards, this can’t be right. I running a 6.5 Creedmoor with a 142 grain HPBT, 580 bc at 2610 fps. The Nikon shows a moa adjustment of 26.42 and the Hornady says 35.3 at 1000 yrds. What’s correct. I have not bought a software program yet, I want to get one for Windows. Thanks

Get coldbore for Windows. You will be overwhelmed at first but it will be worth it.

Between Nikon and hornady 4DOF I would use hornady.

 

[OzTRG]

I’m another vote for Coldbore, however if you are not going to be shooting beyond 1000yds then you could probably get away with a phone app such as AB. Just my 2cents worth

 

[rockywlw]

I will look into the Coldbore software for my laptop. Just out of curiosity what does Coldbore show as drop for above 6.5 load at 1000 yards? I would be interested if it matches ether of these other reports. 142 Serra at 2610

 

[spamassassin]

I ran the same settings using the Hornady and Nikon online calculators and there is a lot of difference. The Nikon Spot on shows a velocity lose of only 500 fps in 1000 yards, this can’t be right. I running a 6.5 Creedmoor with a 142 grain HPBT, 580 bc at 2610 fps. The Nikon shows a moa adjustment of 26.42 and the Hornady says 35.3 at 1000 yrds. What’s correct. I have not bought a software program yet, I want to get one for Windows. Thanks

Garbage in, garbage out. The thing you should buy is some technical support. I can guarantee that you buggered up something if you're getting that big of a difference between any 2 calculators. The math doesn't change. Rather than offer any services directly I'll just mention that I provide some ballistics services and point you at a place to find out what those services might be.

https://ballisticxlr.com

 

[_Windrider_]

Garbage in, garbage out. The thing you should buy is some technical support. I can guarantee that you buggered up something if you're getting that big of a difference between any 2 calculators. The math doesn't change. Rather than offer any services directly I'll just mention that I provide some ballistics services and point you at a place to find out what those services might be.

https://ballisticxlr.com

I like your sheet. I use it for field data at times. I use about 6 different programs.

 

[spamassassin]

Have you seen the latest version, 9.1? Has banded ballistic coefficients.

 

[_Windrider_]

Have you seen the latest version, 9.1? Has banded ballistic coefficients.

I’ll check it out

 

[LastShot300]

I’m another vote for Coldbore, however if you are not going to be shooting beyond 1000yds then you could probably get away with a phone app such as AB. Just my 2cents worth

+1 on Coldbore, hands down the most accurate program we can put our hands on. Agreed, if you are not going really far away, AB, Strelok, JBM, etc will do the job.

Just let me add that I've never seen the so called "complication" of CB. All programs more or less use the data inputs, no free lunch here, but the difference lies on the ballistics engine. There is what separates the good from the regular ones, another option for best in its class is FFS.

 

[OzTRG]

With Coldbore I can understand that some might see it as complicated from a user interface point of view, i.e. need to input data to current environmentals, load track, etc but this to me is just a familiarity thing. The little extra effort (10 minutes practice to get familiar with it) is worth the effort. YMMV

 

[rockywlw]

I can guarantee that you buggered up something

Yup I found it, under drag table I had G7, at G1 the Hornady and Nikon are very close. But a Sierra HPBT is a G7 correct? Thr hornady asks

Ballistic Coefficient (0.01 - 1.2

I entered .611 as Sierra has on their web site. What's the correct answer in these?

 

[spamassassin]

Yup I found it, under drag table I had G7, at G1 the Hornady and Nikon are very close. But a Sierra HPBT is a G7 correct? Thr hornady asks

I entered .611 as Sierra has on their web site. What's the correct answer in these?

Sierra provides G1 numbers for that bullet in velocity bands. Also, PM'd.