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Old December 30, 2001, 08:30   #1
EMDII
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ballistics calculator on-line

Norma ballistics Java script

Thanks to stargazer!
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Old January 01, 2002, 06:49   #2
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EMDII, You are very welcome! But, I was not the first to bring it to the Files. I saved it the first time I ran across it from here too.

Hats off to Norma for bringing us such good tools to work with!
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Old January 01, 2002, 21:20   #3
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Another one:
http://internet.cybermesa.com/~jbm/b...raj_basic.html
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Old October 19, 2002, 10:02   #4
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Bench Rest on-line calculator

Real Guns

Yahoo results on 'ballistics calculator'
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Old October 20, 2002, 11:53   #5
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Thumbs up

Very good site Ted!!


Thanks!
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Old October 20, 2002, 21:26   #6
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Thanks Guys.
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Old October 28, 2002, 23:16   #7
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TT
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Old November 07, 2002, 15:30   #8
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Do any of you have a link to or know the equations used in these ballistics calculators? Ideally, I'd like to be able to calculate ballistics with just a calculator and a notebook at the range.

Thanks,

-Mike
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Old November 29, 2002, 23:45   #9
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I found a simple DOS program which does LOTS of ballistic calculations. It will run on practically any IBM clone machine. It looks terrible compared to modern Windows programs, but it's very powerful. It's shareware, but registration is $15. If you have a palm computer which can run DOS programs, this would be perfect. It even compensates for temp and pressure! You can download it from my site:

Ballistics program

Dirk

P.S. I'm still trying to figure it out, so don't ask me any questions!
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Old May 29, 2003, 19:48   #10
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OK

Here's a question I have been trying to find an answer for.

How do you find or determine the Ballistics Co-efficient of a bullet ???
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Old May 29, 2003, 22:20   #11
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Most manufacturers will post the ballistic coefficient of their bullets on their websites
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Old September 24, 2003, 22:17   #12
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I found these links on a quick google search:

http://www.eskimo.com/~jbm/ballistics/cdkd.html

and

http://www.eskimo.com/~jbm/ballistics/secdens.html


The entire index is here:

http://www.eskimo.com/~jbm/ballistics/


Looks like some pretty good stuff, haven't checked any of it though.
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Old December 20, 2003, 08:51   #13
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JBM is a great reference.
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Old December 29, 2003, 06:32   #14
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Handloads.Com
Biggame.Com
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Old June 05, 2004, 13:49   #15
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Winchester offers a free version of the commercial Shoot! software for their factory ammunition. Right click to download, save on your computer, then install.

http://www.pinsoft.com.au/software/winshoot.exe


The full Version of Shoot! version 3 software at http://www.ballistics-software.com/
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Old August 07, 2004, 23:43   #16
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Using any common ballistics program, and the common data for the equivalent of 7.62 NATO ammo, check out the MPBR with a 6" vital zone having a 25 yard zero. Note that the 235 yard zero will be almost exactly the same. It puts the range at which the sights can be held dead on target from muzzle to around 250 yards with a variation of plus or minus only 3 inches. For most of this range, the deviation will be considerably less. The average shooter cannot even hold to this accuracy absent target sights and a lot of skill/experience or a good scope. My point is once again, as I've repeated so many times in so many other venues, that a 25 yard zero will, if the shooter does his part, produce almost an "eyeball shot" with the VERY easy to establish 25 yard zero. Most hunters, and most uninformed shooters STILL think a 100 yard zero is best. One comparison using ballistics tables or charts will show tha fallacy of this.

Where did the 100 yard zero come from? Damfino. But I suspect it came from ages of deer hunting with the venerable, albeit ballistically challenged "thutty-thutty. "If it was good enough for Grandpa, and for dad, it's good enough for me." NOT!. The 7.62 NATO as well as 308 Win 150 grain hunting loads provide ideal USEABLE ballistics with the 25 yard zero. A highly skilled match shooter or trained sniper CAN use a different zero for longer ranges, but they require much better range determination than the average shooter can get without using a range finder and having his ballistics table with him. The problem with long range zeroes is that the parabola described by the flight path of the bullet becomes so exaggerated that the bullet path above and below the LOS is too difficult to visualize.

Even so, with the 25 yard zero, a decent, not great, shooter can still make accurate hits out to 400 yards or so. Most men, especially older ones (like me) have a hard time even seeing a man sized target well enough at 4 football fields distance to try for anything more than center of mass.

Interestingly enough, the 5.56 NATO cartridge has similar ballistics to the 7.62 NATO, and is also ideal with the same 25 yard zero. Only problem is that at longer ranges, the ME with milsurp 5.56 NATO ammo is considerably less as range increases.

I suggest playing with the ballistics programs available on the web to see just how range and zero affects PRACTICAL field shooting. I have personally, after much research using ballistics software, and verifying results in the field with measured range markers, adopted 25 yard zeroes for all my U.S. military cartridge rifles. It allows me to hit head sized targets out to a measured 300 yards on the first shot, and that's good enough for me. I have noted that the minor variations in bullet weight and MV common in different lots and even countries' versions of milsurp 7.62 NATO don't have enough effect on combat type shooting when using the 25 yard zero to matter.

As usual, YMMV.
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Old August 08, 2004, 08:18   #17
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I always do an initial 25 zero, and then move the targtet out to a t least 100 to ensure that the rounds isn't hiding a slight bias on windage. Knowing the POI for 100, coupled w/ the initial 25 zero, makes it all easy.
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Old August 08, 2004, 18:51   #18
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Hi Ted.
Checking windage setting at 100 yards to verify centering is always a good idea. I do the same myself. One must however guard against re-zeroing elevation in the process.

Also, a slightly canted sight can throw the entire process into error, so care must be exercised when making adjustments.

Thanks for your additional input and clarification. While many of us are familiar with the 25 yard zero, or use a 200 to 235 yard zero (pretty much the same as 25 yards), there are some who have little access to real world sight adjustment info and/or help for combat, hunting, and even just plinking applications. Often, ballistics can seem complicated, almost like an arcane art to those who don't have an extensive background in the science of shooting, or someone to help who is experienced enough to guide them correctly. Ideal zero, especially for modern military long arms, is one subject that is too frequently glossed over or even ignored in "how-to" books and columns. Hopefully, these tips will make good shooting easier for them.

Best regards,
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Old October 31, 2004, 07:03   #19
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http://www.biggameinfo.com/BalCalc.aspx
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Old June 15, 2005, 18:13   #20
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do any of these calculators go out to 1000+ yards??
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Old January 14, 2007, 00:10   #21
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Not sure about any of the programs listed above, but my Sierra "Infinity" ballistics calculator does.
What do you want calculated? If you send me cartridge, BC, bullet weight, mv, los above bore center, range you want maxed at, and range increments, I'll calculate max PBR and whatever zero range you want. Since I can't post pics here, I'll private email it to you.

Lemme know if you want to do it.
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Old July 04, 2008, 07:27   #22
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George, (StarPD)
The US Army uses the 25 meter zero for a reason.
This gives you battlesight zero for 250 meters.
All you need to do is to shoot your 7.62 NATO at a 25 meter target and hit at 47 mm above point of aim (or a 25 YARD target and hit 1-13/16 inches high) and you will be "right on" at 250 meters (yards).
With this zero and the bullet drop of the 7.62 Ball round you can easily hit a man sized target by aiming for the "center mass" (about halfway between the belly button and the throut) and you will HIT.
Good post you made BTW.
Next time we get together... remind me to give you some of the targets that are the official US ARmy 25 meter (yard... whichever you choose).
Bob
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Old March 03, 2010, 13:45   #23
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Old March 03, 2010, 19:24   #24
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http://www.biggameinfo.com/BalCalc.aspx
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Old March 03, 2010, 20:08   #25
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Quote:
Originally posted by MAINER
http://www.biggameinfo.com/BalCalc.aspx
yeah that's the one I use.
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Old June 09, 2014, 17:27   #26
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Quote:
Originally Posted by EMDII View Post
Norma ballistics Java script

Thanks to stargazer!******** ***************** ***************************************** width="1" height="1">
I realize this is an old thread but I could realy use a ballistics calculator right now and none of the links here work. What do you people use now in 2014?
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Old June 10, 2014, 08:57   #27
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Strelok Android app - free. Shooter - $10.
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Old December 05, 2015, 20:13   #28
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When I was trying to figure out exactly what Ballistics Coefficients were, I found this table of them. Go to the section titled "Commercial G1 BC Table". Click where it says "Click here." Just like it says, it's a downloadable spreadsheet. If you don't have MS Office, you can download LibreOffice for free. LibreOffice works on Windows and Linux; might work on Apples.

http://www.frfrogspad.com/bcdata.htm

It's 3-1/2 years old as I type this, but it might still be of use.
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Old August 09, 2016, 16:40   #29
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http://www.winchester.com/learning-c...alculator.aspx
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