New ‘Accuracy and Precision’ Bryan Litz Book is Shipping Now
As we reported a few weeks ago, Bryan Litz has written a new book, Accuracy and Precision for Long Range Shooting. We know many readers have pre-ordered Bryan’s latest book. Here’s the good news. Bryan reports that most pre-orders for the new book shipped yesterday, and the rest will go out today.
We asked Bryan to explain the differences between his original Applied Ballistics for Long Range Shooting resource book and the new Accuracy and Precision book. Here is Bryan’s explanation…
The first book, Applied Ballistics for Long-Range Shooting, covers the elements of long range shooting and explains how all the various mechanisms of external ballistics affect trajectories. It’s also the book that contains detailed drawings, BC and stability data for hundreds of bullets.
The new book, Accuracy and Precision for Long Range Shooting explains the impact of external ballistic effects in terms of “hit percentage”. For example, if you choose to ignore Coriolis Effect in your ballistic solution, how much will your hit percentage be reduced on a 10″ target at 1000 yards? How about a 5″ target at 500 yards? How much would your hit percentage be improved on a 15″ target at 1200 yards if you reduce wind uncertainty from +/-3 mph to +/-2 mph?
There are also numerous performance comparisons between different classes of cartridges. For example: how much higher is hit percentage for a .338 Lapua Magnum than a .308 Winchester for common environments and targets?
The new book identifies accuracy and precision effects and defines their effects separately. Did you ever wonder why it’s so easy to shoot a 10 inch GROUP at 1000 yards, but how difficult it is to HIT A 10″ TARGET at 1000 yards on the first shot? Shooting a 10 inch group is precision, but centering the group is a challenge of accuracy.
It’s quite common for long range shooters to focus 90% of their effort on the precision aspect, and only 10% on accuracy. To actually hit targets, you need a balance of accuracy and precision, with accuracy becoming increasingly more important as range is extended. — Bryan Litz
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