# What is “caliber”? What is it a measure of?

“Whats a bigger caliber .40 or .380?” “Whats the difference between a 9mm and a .357?” “What does {caliber} mean?”

Caliber is basically the measure of the diameter of the projectile being fired. It is also a direct measurement of the diameter of the bore of a particular firearm. This measure can either be in fraction of an inch (i.e. .380) OR in millimeters (i.e. 9mm).

###### Common handgun calibers comparison

One common thing to remember in regards to caliber is that SOME calibers are not EXACT measurements. For instance, the .44 Remington magnum is NOT exactly .44 of an inch. It is closer to .429 of an inch than .44 of an inch. Another thing to remember about calibers is that we commonly see SAME caliber bullets stuffed in different size casings. For example, take a look at the figure above. If you did a little math, you will see that the .357 and the 9mm are the same diameter. The .40 S&W and the 10mm are also the same diameter. Let’s observe how this looks in a rifle example.

###### From left to right .308 Winchester, 30-06 Springfield, .300 Winchester Magnum (Missing is the Winchester 30-30, and the 300 Remington Ultra magnum)

These 5 cartridges are all in the “30 caliber family”. The projectile of ALL 5 of these cartridges measure’s .308 of an inch. These are essentially THE same SLUG stuffed in a different casing. “So which one is more powerful?” Take a wild guess between the 3 in the photo as to which one is more powerful. If you picked the one on the far right, you are correct. GENERAL RULE OF THUMB. Look at the size of the casing. The LARGER the casing, THE MORE gunpowder its going to hold. The MORE GUN POWDER the casing holds the faster the bullet is going to travel. The faster that bullet travels the more kinetic energy its going to have etc..

### GRAIN-The STANDARD unit of Bullet weight measurement

You may hear or read of different bullets being 200 grains (often abbreviated “gr”), or 180 gr. This is the WEIGHT of the bullet/slug/projectile. For example, The .40 S&W is available in 135 gr, 155gr, 165 gr and 180 gr. Lets ask ourselves a few common sense questions and establish a few GENERAL ground rules (there are a few exceptions with high performance ammo manufacturers) 1. The LIGHTER the projectile, the higher the velocity (bullet will move faster through the air) but will not penetrate as deeply as a heavier projectile. 2. The HEAVIER the projectile the slower it will travel, but will work wonders when it comes to penetrating surfaces and retaining momentum. SOO..if you had a .40 S&W pistol with FMJ’s and you wanted to PUNCH THROUGH A WINDSHIELD (or sheet rock, or sheet metal, or plywood) and knock out a target in the front seat, which weight would you use? 135 gr or 180 gr? The 180 gr choice would be more practical. The slower moving 180 gr will retain MUCH more of its kinetic energy than the much FASTER moving 165 gr.

“Sooo…since a 230 gr .45ACP is a bigger bullet than the .357 Magnum which weighs 158 gr, is it more powerful?” The Answer is NO. Take a look at the figure below.

##### .357 S&W Magnum (158 gr) on left .380 ACP (95 gr) in middle and .45 ACP (230gr) on right.

Obviously the .45ACP bullet diameter is wider than the .357 magnum. The .45 ACP also weighs more. SO…which one generates more power? To answer this question, Remember the GENERAL rule of thumb we previously discussed. That .357 magnum has a LOT more powder in its casing. This allows the .357’s 158 gr projectile to travel a LOT faster than the 230 gr .45 ACP. This considerable advantage in velocity allows the .357 to generate over TWICE the energy of the LARGER .45 ACP. GENERAL RULE OF THUMB…A LARGER DIAMETER CALIBER IS [NOT] ALWAYS MORE POWERFUL.

# What is an “Extraction”? What is Threat Assessment?….How Important are they?

“I’m right handed…and I carry on my right hip at 5 o’clock..do I need to learn how to extract my weapon with my left hand?” “Should I learn to draw my weapon with the opposite hand?” “If I’m in a tight situation will I be able to extract or draw my weapon with ONE hand”? These are questions that every RESPONSIBLE Conceal Carry Holder SHOULD BE ASKING themselves. To start off… Let’s look at a scenario I experienced a few months back…

Its 10am, mid December about 40 degrees. I’m walking to the bus stop. I hear a large dog bark aggressively, but I couldn’t determine WHERE the dog was barking. SO, I stop and made an about face to figure out the dog’s LOCATION. I see a medium sized healthy American Pit Bull Terrier sprinting down the stairs and eventually made his way on to the ground. Distance was about 50 yards. Dog was running towards me, mouth wide open, ears slicked back. I hear the owner screaming at the dog…”Molly!!!…you better not bite him!!!..Molly!! Leave him alone!!!” Molly gets about 5 yards from me and I hold my ground and look her in the eye and she retreats. Luckily for Molly I’m a dog lover…or else she would’ve ended up being vulture meat. Let’s take a look at some variables in this scene…because I learned a LOT.

# Threat Assessment

Know when its time to run. Of course you can’t outrun a pit bull terrier. I was thinking….”If this dog bites me on my right forearm..will I be able to extract my gun with my opposite hand and put the dog down?” “Should I extract my weapon and discharge a warning shot to scare the dog”?  “What If I draw my weapon and shoot and miss the dog?” “Surely this 180gr  .40 S&W FMJ at 5 yrds would go through the dog like paper and tear up somebody’s car…or worse”. “Let me hold my ground and see what Molly does because she hears her owner’s voice yelling at her.” All of these were calculations I had to make in less than 4 seconds. Luckily, Molly was a dog that just wanted to play. I actually made the right call in this instant. I made eye contact with the owner afterwards and told her “MOLLY NEEDS A LEASH!!” This incident with Molly also made me consider another discipline in the realm of RESPONSIBLE CONCEAL CARRYING. The EXTRACTION.

# The Opposite Hand Extraction

Later that night, I practice on extracting my weapon at home with the opposite hand. I was thinking “What IF Molly had been an aggressive dog and she latched on to my shooting hand and disabled it?” If Molly had been a REAL attack dog…I would been on the ground instantly and she would’ve been on my neck. See how quickly things happen? Police, Troopers, Soldiers, and anybody with ANY type of Paramilitary training practice and train on this. “What if my shooting hand is disabled?…Can I draw my weapon and fire a few point blank shots with the opposite hand?” ASK YOURSELF THESE QUESTIONS AND ADDRESS THE PROBLEM. IT COULD SAVE YOUR LIFE. PRACTICE THE OPPOSITE HAND EXTRACTION WITH AN EMPTY CHAMBER.

Issue with this extraction?…We didn’t see him draw with the other hand. What if the OTHER arm was shot and disabled??

# What type of ammo should I use in my conceal carry firearm?

“What are the pros and cons of hollow points?” “What are the pros and cons of FMJ’s (full metal jackets)?” “Are hollow points barbaric?” “Do hollow points make me look blood thirsty?” “What about Xtreme Penetrators”? These are questions that are asked by the common first time gun owner. Lets say you just purchased your gun, it fits well, its concealable, and you are fairly decent with shot placement. The gun store clerk shoves a box of “Hornady Critical Defense” ammo towards you and fiercely recommends it for personal defense. Could you visualize or articulate the difference between Hornady Critical Defense rounds and regular ol’ bullets (FMJ’s)?

## Full Metal Jackets (FMJ’s)

A full metal jacket is usually consists of a SOFT metal core that is encased in a harder metal such as brass. FMJ’s are usually referred to as “ball” ammunition in the military. Full Metal Jackets do a decent job at damaging or penetrating HARD surfaces such as windshields, sheet rock, sheet metal, tin, stone, wood and ceramics.  They also devastate soft targets such as flesh and ballistics gelatin.

## FMJ Drawbacks

One main drawback of FMJ’s is that they have a tendency to overpenetrate-they don’t stop until they’ve expended ALL of their kinetic energy. By the time FMJ’s have expended all of their kinetic energy they may have passed through an attacker’s body.

###### Common Calibers in Full metal jackets

If you are shooting an assailant with FMJ’s from a high velocity CONCUSSIVE caliber like a .357 SIG, .357 Magnum, .40 S&W, or a 10mm, you may be increasing the chances of overpenetration. This phenomenon occurs when the projectile FAILS to stop traveling because it has not expended all of its kinetic energy inside the target (this is also called a “through and through”, or an “exit wound”). These overpenetrators are free to fly around and tear up someones engine block on their car, punch through somebody’s vinyl siding, kill somebody’s dog, or even ricochet and kill an innocent bystander.

# Jacketed Hollow Points (JHP’s)

A hollow point is basically a bullet that has been hollowed out. This hollowing out causes the bullet to expand when it hits a soft target such as ballistics gel, flesh, or water. This design allows hollow points to expend nearly ALL of their kinetic energy INSIDE of the soft target. Expansion causes the surface area of the bullet to increase substantially. This virtually eliminates the possibility of over penetration. Just visualize FMJ’s as spears. Spears pierce and cut straight through a target. Now imagine Hollow points being like sledge hammers. Sledge hammers crush,Smash, rip, and tear through things. The spear and the sledge hammer are both incredibly lethal, but they work in different ways.

Hollow points are ILLEGAL to be used by armies around the world according to the Hague Convention. But they are the ammunition of choice for Law Enforcement in America (hmmm).

## Hollow Point Drawbacks

One performance drawback of the Hollow point design is the fact that it relies on liquid or semi liquid targets (like flesh, water, or ballistics gelatin) for expansion. If it strikes a hard surface such as a windshield, it may not punch through. Another performance drawback is that the hollow point expansion can be defeated if an attacker has on THICK clothing like a sweat shirt.Thick clothing will cause premature expansion and basically cause the hollow point to behave like a weak FMJ. “Hornady Critical Defense” solves this problem by filling the hollow point cavity with a rubber like polymer. This eraser-like material DELAYS expansion when/if the bullet strikes heavy clothing and allows the hollow point to behave like a hollow point should.

Count up the cost and weigh your options. Look at the pros and cons of both ammo types. Some gun owners alternate FMJ’s with JHP’s in the magazines to get the benefits of both. DO what works for you.

# Should I be concerned about the capacity of my handgun?…

“What is the importance of capacity?” “Do I really NEED 15+1?” “Does it really take an entire magazine to eliminate a threat?” These are questions to ask yourself BEFORE you make a financial commitment to a conceal carry handgun. Some gun owners advocate carrying the maximum amount allowed by comfort. While some gun owners sacrifice a high capacity magazine for the sake of an easier concealment. To be frank, its not going to take 15 rounds to neutralize your typical threat (unless the suspect is on bath salts, PCP, or has a metal endoskeleton). HOWEVER high capacity magazines DO play a critical role. Lets look a this scenario.

## The Great X Factor…Multiple Assailants

Man pulls into his garage with his family. As his automatic garage door closes, one suspect grabs the bottom of the garage door and holds it. This allows his armed companion to slide under the door to proceed to assault the driver. As the suspect opens the driver’s door, he his showered with 3-4 shots to the torso and flees out of the garage.  The driver pursues the assailant that was holding his garage door and donates a pair of shots to him and then delivers 3 more shots to another accomplice. I counted approximately 10 or 11 shots. (Watch closely and tell me if my math is off).

What if the property owner had a Subcompact conceal carry weapon like the Glock 42, Or the Glock 27, or the Smith & Wesson Bodyguard? All of these are VERY popular conceal carry weapons that typically have a magazine capacity of less than 10 rounds. If he had been carrying one of these low capacity weapons and encountered multiple  DETERMINED attackers…he and his family in the vehicle would have been in serious danger. Compact or full size pistols will typically offer well over 10 rounds while still being highly maneuverable.  Its not barbaric. Its just a case of “You’d rather have it and not need it…than need it and not have it”.  Just remember..if you choose a lower capacity weapon (less than 10 rounds)…be ready to flee if necessary. It may be difficult to hold your ground against multiple assailants.

# What factors are to be considered when concealed carrying?

## Shootability

“Can I control this gun?” “Can I thread the needle with it?” “Is this handle too small?” “Is this too much recoil?” These are key questions to ask yourself BEFORE purchasing a handgun for conceal carry. A person that decides to conceal carry is doing so because of personal protection. Buying a gun that is cosmetically appealing is NOT as important as getting one that you can control and shoot accurately. Think of them like cars. You may WANT that Ford Excursion because your friend has one and its pretty. But you may not be able to AFFORD weekly fuel costs, maintenance, and tires. You may find the Excursion extremely hard to parallel park and control while on the freeway. So is the Excursion actually for you? Maybe you should go with the Ford Fusion or the Taurus. Going to a gun range and trying rentals is a GREAT idea to familiarize yourself with different handguns. IF you are investing in personal or home defense you NEED to be able to comfortably shoot your handgun AND be able to place shots where you need them to go.

## Concealability

“Is this gun bulging out of my pants?” “Can I do an appendix carry?” “Can I carry on my hip?” “Can I carry on my back (6’o clock)?” “Would I have to carry this gun inside my waistband (IWB) or Outside the waistband (OWB)?” These are questions to ask yourself BEFORE purchasing a handgun for conceal carry. CONCEAL CARRY IS NOT CONCEAL CARRY IF YOUR GUN IS TOO FRIKKIN BIG!!! IF YOUR GUN IS BULGING OUT OF YOUR GARMENTS..ITS NOT CONCEAL CARRY ANYMORE!!! Rentals at a gun range will give you a perfect opportunity to see how this gun feels on/in your waistline. Holsters will provide extra security, stability and comfortability to your conceal carry firearm. Observe yourself in the mirror with your gun in your waist to see if it bulges or imprints itself.

## Comfortability

“Is this gun too heavy?” “Does it make my pants sag?” “Can I sit down with it comfortably without re adjusting it?” Comfortability will be a crucial deciding factor while conceal carrying. IF YOUR GUN IS NOT COMFORTABLE (WHILE STANDING AND SEATED) OR TOO HEAVY, YOU WILL BE A LOT LESS LIKELY TO WANT TO CARRY IT. Again, Rental guns will provide a great opportunity to examine a gun’s comfort for conceal carry.

## Extractability

“Can I extract my weapon with one hand?” “Can I extract my gun CONSISTENTLY  with one EFFICIENT/SWIFT MOTION and acquire a target without getting my garments caught in the way?” Ok..lets say your conceal carry gun is accurate, the perfect size for you, perfect weight, is extremely comfortable, and amazingly concealable…but you have trouble throwing that covering garment out of the way to extract and aim down range…This will take practice. If you EVER have to draw…it will need to be SWIFT…and EFFICIENT with as few motions as possible (For example…an attack by a dog will command the use of a ONE handed extraction). PRACTICE ON YOUR EXTRACTIONS WITH AN EMPTY CHAMBER.

## User Friendliness

“Does this gun have too many knobs?” “Is this gun easy to breakdown”? “Is this gun easy to clean?” Ask yourself these questions before you get your gun. Gun rentals are an easy opportunity to evaluate user friendliness. If a gun is user friendly (like Sig Sauers, Glocks, SD’s and SW’s) you will be more likely to disassemble it and clean it. Regular disassembly and cleaning will virtually guarantee 100% functionality. If you are conceal carrying, this is critical. A failure with your weapon during a self defense response will lead to disaster.