.22

The .22 Long Rifle rimfire (5.6×15R – metric designation) cartridge is a long established variety of ammunition, and in terms of units sold is still by far the most common in the world today. The cartridge is often referred to simply as .22 LR (“twenty-two-/ˈɛl/-/ˈɑr/”) and various rifles, pistols, revolvers, and even some smoothbore shotguns have been manufactured in this caliber. The cartridge originated from the Flobert BB Cap of 1845 through the .22 Smith & Wesson cartridge of 1857, and was developed by the American firearms manufacturer J. Stevens Arms & Tool Company in 1887[3] by combining the casing of the .22 Long with the 40-grain (2.6 g) bullet of the .22 Extra Long. For many decades, it has been a very popular cartridge around the world. It is one of the few cartridges that are accepted by a large variety of rifles, as well as pistols. The .22 Long Rifle and related cartridges (.22 Short, .22 Long and .22 Extra Long) use a heeled bullet, which means that the bullet is the same diameter as the case, and has a narrower “heel” portion that fits in the case.

The Box O’ Truth #8 – The Rags O’ Truth

What are the effects to a bullet of passing through thick clothing before hitting a bad guy? Will that stop or slow down bullets considerably? Will it clog-up hollow points and prevent them from expanding? We have several inches of cloth clamped to a cardboard holder in the Box O’ Truth, just to keep it together. Then, a milk jug of water to catch the rounds that exit. Then three pine backer boards, in case the jug [...]

The Box O’ Truth #11 – Spall Liner

My friends, Goodmedicine and his son MEAD, sent me some interesting material called “multi-ply Kevlar / thermoset resin laminate sheet”. This stuff is used as a “spall liner”. Here’s what we could find out about spall liner. “Recently, many manufacturers have added a spall liner to the inside of the armour, which is designed to absorb fragmentation (spallation) released from the impact [...]

The Box O’ Truth #13 – The Water Box O’ Truth pt. 2

Today, we are going to shoot some Jacketed Hollow Point ammo into some water jugs with cloth in front, to continue some research we started in the “Rags O’ Truth”. We will then see if various types of ammo expand as designed. Following some suggestions, this time we will have the clothing right up against the first jug, to better simulate the way clothing is worn. GaryM, and Dragracer_Art both were kind [...]

The Box O’ Truth #15 – Fragmentation Armor

We’ve had a lot of interest in what would Level II Armour do to stop bullets. This is commonly called “Fragmentation Armour” and is designed to stop shell fragments. While not designed as an anti-bullet armour, we wondered what it would do. My old buddy DVDTracker, of LifeLibertyEtc, sent me some old Level II vests from the military, and said to give them a try. Here’s one of the used vests [...]

The Box O’ Truth #21 – The Breadbox O’ Truth

A recent thread in AR15.com stirred a big debate. It seems a “Firearms Instructor” told a student that a loaf of bread would stop a bullet, especially if the bullet was a Jacketed Hollow Point. Now, we all know that if you read it on the internet, it must be true. Right? So, to the range. My old buddy Tman doesn’t get many “acting” parts in these threads, so I assured him that this was safe, [...]
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