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Ballistic calculator

Yep, that's what I was trying to bring up. You cant input G1 drag model and use G7 Ballistic coeff. Or input G7 drag model and use G1 BC.

Has to be apples and apples or oranges and oranges, not apples and oranges. That and putting in station pressure for BP when the model wants a corrected BP or vice versa, or putting in Station and having the model correct it again cause thats how the inputs are set up can really fry your results.

You really have to understand every input parameter for that particular model and how that particular model is going to use each input.

It can be mind boggling. But its the work that has to be done if you are gonna model it. You have to study each model's manual or user instructions and read how it defines each input screen and in what units.

Otherwise you get scrambled eggs which is worse than apples and oranges!🙂

Pick a model, one model, and focus on it first. Learn it really well, then
you can pick up another one etc.

Even though the physics and math in all these models is very much the same. There are maybe slight variances in modeling approaches.

BUT I GUARANTEE YOU THE INPUTS AND INPUT ASSUMPTIONS FROM MODEL TO MODEL ARE ALL DIFFERENT!

Yes, highly confusing. Its like
trying to speak English in France!
Or worse trying to speak German
to a Frenchman. When in France
or Quebec or Montreal, they only hear you when you speak French!

Mon Dui!
 
Sounds like G1 BC is .444 and G7 BC is .242, but I did not read back through all the threads here on 10 pages.

If only shooting 300 yards, I might prefer to use G1 and .444 for that short distance regime.

G7 is really suited more to distances where "terminal" velocities have become more the
controlling factor in the physics.
So unless I was shooting say 800 to 1000 yards, I might not model with G7 and .242.

But, make real sure you dont accidently mix G1 with .242, and G7 with .444.

Bullet Manufacturers like to only cite G1 cause they are higher and sound better for marketing.
It was corrected in post #182
 
I tried JBM and Hornady app and they gave me the same come ups. The models might be different be we're talking about only 300-500 yards. I could use a third app but I believe 338 dude plugged in the same inputs and essentially got the same come ups. If the OP paid for Strelok I suffest he email customer service. They also have a trouble shooting pdf which can be found by googling it. Good luck!
 
Yep, that's what I was trying to bring up. You cant input G1 drag model and use G7 Ballistic coeff. Or input G7 drag model and use G1 BC.

Has to be apples and apples or oranges and oranges, not apples and oranges. That and putting in station pressure for BP when the model wants a corrected BP or vice versa, or putting in Station and having the model correct it again cause thats how the inputs are set up can really fry your results.

You really have to understand every input parameter for that particular model and how that particular model is going to use each input.

It can be mind boggling. But its the work that has to be done if you are gonna model it. You have to study each model's manual or user instructions and read how it defines each input screen and in what units.

Otherwise you get scrambled eggs which is worse than apples and oranges!🙂

Pick a model, one model, and focus on it first. Learn it really well, then
you can pick up another one etc.

Even though the physics and math in all these models is very much the same. There are maybe slight variances in modeling approaches.

BUT I GUARANTEE YOU THE INPUTS AND INPUT ASSUMPTIONS FROM MODEL TO MODEL ARE ALL DIFFERENT!

Yes, highly confusing. Its like
trying to speak English in France!
Or worse trying to speak German
to a Frenchman. When in France
or Quebec or Montreal, they only hear you when you speak French!

Mon Dui!
Mon Dieu!
Mon ami.
Mon Dieu!😁
 
Yeah, usted puede hablar Frances or what? I can speak Texican which in French translates: Hey there good buddy, Do ya speak that Frenchie lingo?

Insert Texas accent and go....
 
I tried JBM and Hornady app and they gave me the same come ups. The models might be different be we're talking about only 300-500 yards. I could use a third app but I believe 338 dude plugged in the same inputs and essentially got the same come ups. If the OP paid for Strelok I suffest he email customer service. They also have a trouble shooting pdf which can be found by googling it. Good luck!
I get the same answers as post #182 with BallisticAE, QuickTarget, and Hornady. Streloc might have a bug in the app, ofr those of us who programmed in the past, is not unsual
 
I get the same answers as post #182 with BallisticAE, QuickTarget, and Hornady. Streloc might have a bug in the app, ofr those of us who programmed in the past, is not unsual
Strelok might have a bug but since guys are using it out to a mile I doubt it would be that off at 300 yards. In any case they have customer service.
 
Strelok might have a bug but since guys are using it out to a mile I doubt it would be that off at 300 yards. In any case they have customer service.
Not all bugs manifest the same way and in every simulation. I used to beta test modelling software a lifetime ago...and always found bugs that manifested only if a certain condition applied....
I am not saying it does, I am not saying there is anything wrong with it, never used it. I am saying it could be
 
Your drag model says G7 but it appears your BC is G1. Is that correct or am I missing something?
Yes either I read improperly or put in the wrong BC with the first calculations check out post number 182 or later after visiting the website the actual BC is a G1 of .424 not a G7.444
 
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