30-06 ballisticsIf you ever bought a domain name then you understand the difficulty in finding

an available .com name.  A name that is both relevant to the subject and available.

That being said, 30-06 ballistics will discuss more than ballistics.  The following

excerpt is for those of you who came for ballistics information.

30-06 Ballistic Basics

Interior ballistics- this area is important after ignition but before the bullet exits the

barrel of the gun.  Important variables that occur during this time are: pressure burn

rate temperature, expansion ratio, acceleration.

Exterior ballistics-this area of study occurs immediately after the bullet leaves the barrel and as the bullet is flying

through the air, but before it reaches the target.  During this time the flight of the bullet is effected by physical forces

such as air resistance and gravity. These forces cause negative acceleration and downward path curvature.

Terminal ballistics- this area occurs when the bullet strikes an object.  How the object and bullet affect each other.

Understanding interior ballistics is important especially if you are a reloader, ammunition and firearm designers.

If you are a long range shooter the area of exterior ballistics would be of great interest to you.  Terminal ballistics

is especially important to hunters, law enforcement, and military.

 

30-06 ballistics – a few important factors

Sectional density (SD) The greater a bullets SD the easier or more efficiently the bullet will overcome

resistance. In our case, air resistance and resistance produced as a bullet penetrates an object. SD is not

the only parameter at play but it is important.

Sectional density of bullet = M/d^2 (squared, ^ means to the power of)

M = Mass of the bullet, kg or lb.

d squared = diameter of the bullets caliber (inches or or meter).

Notice the diameter in the formula is squared. This means a small increases and decreases in diameter will have

huge effects on SD. A needle has a much greater SD than a silver dollar. Meaning the needle will more

efficiently overcome both air resistance and resistance produced when penetrating an object.

Form Factor (i) – This is another term found in load manuals. The form factor of a bullet equals the drag of

the bullet (CB) divided by a standard drag (CG). In the projectile model the standard drag equals 0.5191.

Form Factor (i) = CB/CG.

Why discuss sectional density (SD) and form factor (i)?

Notice the equation below:

Ballistic coefficient (BC) = SD/i

When you know have SD and i you can then calculate the ballistic coefficient.

Ballistic coefficient – is a measure of how efficiently a bullet works to overcome air resistance. A fired

bullet moves through the air accelerating to a certain velocity. Air resistance is the major force working

on the bullet in the opposite direction. Air resistance will eventually win, causing negative acceleration

and a decrease in velocity.

The higher the bullets ballistic coefficient, the lower the negative acceleration.

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ddd

 

Becoming the master of the draw doesn’t require creating a mountain of spent bullet shells at the range. Taking this approach is both wasteful and expensive plus fairly ignorant.  Squeezing the trigger and firing your handgun is one step to becoming a hand gun master and only the very last step. To become the master, you need to include a regime of dry fire practice.  This type of practice only requires your wiliness and an empty and handgun.

Dry fire practice, marksmanship is a sport

Many individuals who practice marksmanship do so because because of life and death reasons. They put their life on the line in their occupations (police, military) or they may be citizens with the objective of protecting themselves and their family. But make no mistake about it, marksmanship is also sport. And you should practice it as if it were a sport.  Most if not all professional athletes have become elite through practice.  They practice the same technique thousands of times over and over.  They even break each movement into separate steps and practice each of these steps over and over thousands of times, finally putting each step together into one complete fluid movement.  A marksman can use dry firing practice for this same purpose.

What is dry fire practice what are the objectives?  

This type of practice is the practice of shooting and shooting related skills without actually firing a shoot. Being able to manipulate the gun and trigger, finding the sight as quickly as it moves in front of the face, aiming, triggering your firearm without ammunition and reloading. There are an endless array of real life scenarios you can dry practice.

The main objective of this type of practice is to develop muscle memory.  When you develop this you will not even need to think everything will become a reflex.  You will develop the fine motor skills that are essential to becoming proficient with a handgun.  Dry firing practice will also allow you to better notice mistakes and bad habits that are almost impossible to detect during live firing, such as flinching, blinking and lack of follow through.

Core of dry fire practice

Pay close attention to the front sight during trigger manipulation and practicing for the reset.

You want to pay close attention to the first site because it will tell you if you are doing something wrong:  Is it moving down. is it moving down to the right, is it moving up?  Pay close attention to your front site during dry firing we are not always able to notice these mistakes when we fire live rounds.

Dry fire practice allows you to practice presentation.  Presentation bring from the time you pull the gun, put your hands together on the gun and then up to the target. Also during the practice of presentation you want to work on picking up the front sight as quickly as possible as the gun moves in front of your face.

Practicing multiple targets. Presenting the gun to one target, rotating to the second and rotating to the third target.  Two shots at each presentation.

Practice your draw, this can be done with your arms relaxed at the sides or with your hands up in the air.

You can practice your reloads, present the gun to the target, reload (empty) and present their gun back to the target.

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30-06 ballisticsDo you carry a handgun? If you only keep your handgun in your desk drawer,

never carrying it on your person, then understanding the purposes of a holster,

probably is not much concern to you. But to those who carry a handgun for

self-protection understanding the purposes of a holster and choosing the right

holster for you could should be a very important subject. This is

because the wrong holster can cost you your life. Some of you professional hand

gunners may be rolling your eyes thinking the points made in the following list

are fairly obvious this post is more directed towards beginning hand gunners.

 

Four main principles of handgun holsters – 30-06 Ballistics

1. The holster is an apparatus to carry your handgun. For this apparatus to be effective it must stay in a fixed position at all times. If the holster doesn’t remain absolutely fixed then difficulties will arise in your ability to obtain and control your handgun.

How do you ensure a fixed position? When picturing a holster in your mind you may only envision the case where the hand gun is placed. But a holster is much, much more than this. A holster is also a belt loop. To ensure stability in your holster you want a wide belt loop and you want to wear a wide rigid belt. Please don’t wear a thin designer belt.

2. Securing your weapon from loss. You do not want to lose your weapon. Imagine having to run while wearing a holster. The gun pops out falling to the ground. The time comes where you must reach for your gun and it is gone! The holster you use must be able to retain your hand gun bases on its mold, configuration and the tension from the hoslter.

3. Protection from environmental factors. The main factors we want to protect our handgun from are dust and moisture. Do you live in a mainly dry or moist environment? There are differently constructed holsters for use in different types of environments. Also, if the change in seasons where you live brings drastic weather changes (summer compared to winter) you may also want to consider using different holsters in these different seasons. You want to protect your handgun from environmental factors.

4. Fast on the draw. One way to improve your marksmanship skills is through repeated dry fire practice.  The majority of handgun engagements begin quickly at close range. You want a holster that will allow you to quickly obtain, control and present your handgun. Buy a holster that will not interfere with this. And then you will need to practice on the movement until it becomes built into your muscle memory.

 

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According to European artillery taxonomy, the howitzer is classified as being between a gun and a mortar.  To many,
the howitzer is a type of cannon.  I call this a hand held cannon, introducing the 700 caliber Howitzer.

 

30-06 ballisticsThe magic number is 129,166. This was the number of

firearm sales during 2011 Black Friday, an all-time

high for firearm sales on this “special shopping”

day. It also marked a 32% percent increase over

2010 sales on the same day. To put this in better perspective

around 97,800 firearms were sold on Black Friday 2010

compared to 129,166. If you ask me, this is a hell of an increase.

 

Firearm Sales – Why such an increase

The AFP stated they have no explanation for the extreme increase in sales. There has to be a reason. Maybe

the reason is gun companies are finally learning how to create a Black Friday frenzy for their products?

Are gun companies this slow? The origins of Black Friday date back to 1966 Philadelphia and by 1975 was a

common term used around the country to describe the shopping frenzy on the day after thanksgiving.

Why is it called “Black Friday”? It’s the day of the year the majority of retailers get out of the “red” (losses)

and into the “black” (profit).

 

The concept of Black Friday has been around since 1966 and Gun companies are only now learning how to drive

sales on this day? 45 years later? Did you notice any significant increase in promotions by gun companies

leading up to 2011 Black Friday?

 

2nd Amendment – Constitutional Rights

Dennis Henigan, acting president of the Brady Center to Prevent Gun Violence seems to think there is no real

significance in this increase in gun sales. Mr. Henigan is wrong. Any statistician will tell you if an a 32%

increase is significant. There is definitely a reason behind the increase. Maybe, gun companies more

aggressively promoted Black Friday?

 

Or maybe the better reason is, the American public is awaking? The American public is realizing their rights

are being more and more infringed upon? Is this a sign that more American citizens are taking notice to what’s

going on in Washington?

 

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