Home Forums Hunting & Shooting Long Range Hunting Applied Ballistics Book: Second Edition

Now accepting pre-orders for the second edition of Applied Ballistics for Long Range Shooting.



The book will begin shipping on April 18.

You can read about the second edition and place your order here.

-Bryan

Well done sir--looking forward to it. The 1st one is great (still reading it).

Bryan,

of the 61 new bullets that you measured does that include more Accubonds?

Also does it go into any more depth on measuring the Rt/r value of bullets, I know that the last book says that you can look at the bullet and get close but I find that if the bullet has a value of .50 or 1 then I have no problems but i could not tell you the difference between a .68 and a .78....

I know it is complicated but I was just wondering if you touched on it.

Thanks.

Good for you Bryan.
I will get a copy for sure.

HeavyWalker,

I did test and include several more Accubond bullets. If you have a specific one in mind, I can tell you if it's included.

Regarding the Rt/R value...
Calculating this ratio is easy IF you know the Rt and R values However, you have to measure the ogive to know the actual R (radius) of the ogive. And you have to do a mathematical calculation to find out the Rt based on the caliber and length of the ogive (and the meplat diameter).

The mathematical calculation of Rt is relatively easy, you just need paper and pencil. However, the hard part is measuring the actual radius of the actual ogive. For this I chuck the bullet in a mini-lathe, and traverse a 0.001" dial indicator along the ogive, recording the x-y coordinates in 0.025" to 0.050" increments along the length. These coordinates are then entered into a special program that I wrote which fits a circular curve to the data points, and outputs the radius of that curve (which is the radius of the ogive). After that, it's just the calculated Rt divided by the measured R.

It's another example of something that's not a difficult concept, but is quite difficult to carry out.

There are other ways to measure an ogive radius besides the method I described (optical comparator for example), but none are easy and/or cheap that I'm aware of.

-Bryan

Thanks for the explanation Bryan, no specific accubond in mind I was just wondering because I use accubonds quite a bit for hunting and have came up with my own G7 BC for a lot of them and I am curious to see how they match up to yours.

Thanks again for explaining and for providing such a great resource.

140gr .277 accubond by chance?

Here is a complete list of all the bullets:
Bullet List

Dang, I haven't even figured out everything in the First Edition yet!

Bryan: Does your book treat the effects of altitude on ballistic coefficient. I have not done my homework recently, but I seem to recall an old Sierra manual that had a formula for it. Rule of thumb in flying below FL180 used to be 2% per 1000 feet as a guideline for TAS calcs and other measures (lapse rate etc.) Bottom line, does a flat meplat Nosler protected point shoot at 10,000 feet like a vld at sea level, other factors being equal? Thanks in advance.

Bryan- Does this book contain the information in the 1st or is this a supplement to the first? I'm looking foward to working on shooting longer and would like to learn more and am wondering if I need to buy the 2nd verson or both. Thanks in advance.

LP,

The book does describe the effects of various atmospheric properties on the bullets trajectory. The bullet flies as if it's BC is different at different altitudes, however, the BC is actually constant, and it's the atmosphere that actually changes at various altitudes.

Pointer,

The second edition contains everything that was in the first, plus additions.

Thanks for your interest,
-Bryan

Thanks. If I still get to go to work on Monday I'll be ordering a copy.

The books came sooner than expected!

All pre-orders are being processed and will ship tomorrow (April 12).

All new orders will be ship within 1-2 days.

-Bryan

Bryan, in your first edition I see notes on the accuracy of published ballistic coefficients such as at the bottom of page 332. My question is not how do you define ballistic coefficient, but how do you define the accuracy of ballistic coefficient values? I don't see how you came up with the published BC being 5% in error.