New Ballistics Program

[45YearsShooting]

I wrote a new Windows program I call Bullet Ballistics. It's very easy to use and totally free. You can download it by going to my website www.sanesoftware.com

Here's a screenshot of the program:

 

[std7mag]

Looks pretty cool!!

Is there a way to screen shot a particular calculation? I shoot many different bullet weights, and even some same bullet weight, but different construction for same cartridge type.

Also any way to label what cartridge you are looking at? Aka 308, 243 etc...

 

[45YearsShooting]

Hi std7mag. If you give me all the input parameters you want (example shown in the first post), I'll run the calculation and post a screenshot of it here for you.

To answer your second question: Yes you can save any input parameters and give it any file name, then pull it up again. These options are on the "File" menu.

 

[burrhead]

You may want to include an option to chose different standard projectile shapes. At least G1 and G7 as they are the most popular.

 

[oldmanFCSA]

Can you open up the Defaults to a MAX range of 5000 yards? and BC opened up to a max of 1.20

After much consultation JBM opened his to 4000 yards.

World record shots have been made out to 4200+ yards - would be nice to show the calculations required to complete such a shot.

 

[burrhead]

FCSA's post bring up another thought. When you get into longer ranges (700+ yards) Coriolis force starts to really come into play. To figure that you'll need to factor in the compass heading. The calculations may become more than you want to deal with, I don't know.

 

[ericuda]

Thx, curious what would the bc be for 45-70 flat point lead bullets be. Looking at mbc's 300 and 405 grain bullets.

 

[45YearsShooting]

Can you open up the Defaults to a MAX range of 5000 yards?

Right now the program lets you select a maximum range of 2000 yards or 2000 meters. I don't want my program to give results that are too inaccurate. These formulas do not hold up at those extreme distances. Other factors like spin drift come into play also. Even 1000 to 2000 yards is pushing it. Shooting beyond that, I would not trust any data other than what I observe by actual shooting.

 

[Unclenick]

Ericuda,

There are different designs. A WFN has a proportionally wider meplat than a LFN design (if these are the kinds of bullets you are talking about). Figure the G1 form factors range from about 1.8 to 2.5 for most of them . A wadcutter has a G1 form factor of about 3.2, for comparison. Anyway, just divide the sectional density of the bullet by the G1 form factor to get the G1 BC. If you are talking about bullets with a G1 form factor of about 2, then the BC is just half the sectional density. You'll be in the 0.10-0.15 range for the most part. The 148 grain 38 wadcutter, for comparison, has a G1 BC of about 0.052.