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May 14, As long-range shooters, we tend to obsess over every little detail. We think everything is important! While you can get away with a lot of minor mistakes and still ring steel at short and medium ranges, as you extend the range small mistakes or tiny inconsistencies are magnified.

So, most things are important … but to differing degrees. So if we have a limited amount of time and money, where would we get the biggest return on investment? In other words, there are lots of things I could focus on more precise rifle, better scope, more consistent handloads, more practice, etc.

Is there a data-driven approach to help guide us toward the most important factors to increased hits at long-range? This gives you the ability to systematically study how different field variables in real-world shooting affect the probability of hitting long-range targets.

Here is his summary of this software package: This tool allows a shooter to see how his rifle can be expected to perform under a wide range of conditions, and how errors contribute in causing a bullet to miss its target. Monte Carlo simulations essentially play out hundreds or thousands of possible outcomes based on your inputs.

The variables in each scenario are randomly populated within the ranges you set and according to a probability distribution. Those shots would all still be within a 0.

It does that same thing for each of the variables in every scenario muzzle velocity, wind call, range estimation, etc. Here is a screenshot of this part of the program, and I highlighted some of the key variables you can tweak.

I wanted to run similar analysis on some of the more popular precision rifle cartridges. After playing around with the WEZ tool a lot, I can say it was very enlightening! It challenged a lot of my long-held assumptions about how important different aspects were.

Virtually every rifle shooter loves to print a tiny group on a target. But, is there a point of diminishing returns in terms of how tiny groups relate to your probability of hitting targets at long-range?

The chart below shows how your odds of hitting a target increase as you shrink the size of your group. But if your rifle capable of 0. So by tightening our groups to 0.

If we continue to refine that load, and can get to 0. So there is only a 1. Here is a look at what the shot simulations looks like for those scenarios: Did it surprise anyone to see that there was only a 2. What about just a 0.

The reason is at longer ranges most misses are due to wind, not vertical dispersion. Improving ballistic performance can increase hit percentage at long range, but even high performance rounds are highly susceptible to wind uncertainty.

These simluations were programed so that the shooter would be able to call the wind within 2. Did you notice that?

Honestly, that surprised me, and I bet it did some of you guys too. As Litz explains in his Accuracy and Precision book: But at short range, the environmental uncertainties are less important and so hit percentage is more driven by raw precision capability.

There are no right or wrong answers here! One last point to keep in mind, is that all of this analysis assumes you have centered groups.

But these simulations assume we have all that stuff squared away. Other Posts In This Series This post was one of a series of posts that takes a data-driven look at what impact different elements have on getting hits at long-range. Here are some others posts in this series:Roulette Computers (Hidden Electronic Devices) See caninariojana.com for the best roulette computers, and free instructions to make your own.

These are hidden electronic devices that measure the speed of the wheel and ball to predict the winning number. These formulas give approximate values for maximum penetration and cavitation diameter in inches, again for non-deforming bullets with a relatively broad flat nose.

Ballistics. The term ballistics refers to the science of the travel of a projectile in flight.

A TMJ bullet is not recommended for ported firearms, because there is an increased likelihood that part of the casing may be sheared off as the bullet leaves the barrel. Handgun Ballistics. The two major variables in handgun ballistics are.

If you had to rely on one zero, what would it be? For a long time, the mantra has been that the 50 / yard zero is the most useful zero for the AR15 platform as it offers a flat trajectory for the cartridge. gun, rifle, shotgun, etc. ballistics calculators, formulas, tools, guides, etc.

gun calculators, applets, animations & simulations, rifle calculators, applets. Applied Ballistics LLC. The Science of Accuracy. Menu. Activities. Competitions; Aerodynamic Jump is independently solved and provided as part of the firing solution.

under the Edit function. You can change your input and output variables. Simply click on the function you wish to change, select the new variable you want to use.

Once it.

Tankograd: T Part 2