Ballistic software question

[MinnMooney]

Does anyone know of a software program that will calculate and print external ballistics if the exact velocity or precise B.C. isn't known?

I want to get more "real life" drop figures than what I'm getting from the Federal, Winchester & Sierra's "Infinity I6" softwares.

The bullet manufactures like to inflate their bullets' ballistic coefficient values by using the G1 value rather than it's more realistic G7 value. Those values do me little good as the real drop does not match the program's drop figure. There is a lot of talk, also, about how most chronographs really don't give accurate velocity data but I have no idea of how to prove/disprove those statements. All I know is that the velocities that I get from my Shooting Chrony Gamma Master almost always seem to be under what my reloading manuals say they should be.... & "Yes" I am using the longer barrels (26" & 28") like they test their loads with.

I want to zero @ 100 yds, then shoot at 200, 300 & 400 yards and measure my drop at each and plug those drops into a software program to find the computed B.C. and have the software fill in and extend the drops to other distances.

Do any of you have such a software program? Where can I get it?

 

[Shawn Dodson]

Hornady Ballistics Calculator?

 

[MinnMooney]

Thanks, Shawn, but that software needs velocity just like the other 3 that I mentioned.

Come on High Roaders. Someone must have used one of those programs that doesn't require velocity or accurate B.C.s.

 

[TIMC]

I think your looking for a mythical creature.

My Alpha chrony gives accurate velocities compaired to the ballistics calculator on ammoguide interactive.com. They hve a good program but it require velocity and BC. They also have a lot of good loads listed from members as well as their own.