The Remington 572 is a pump-action, 22 caliber rifle that has been in production for over 50 years. With that many years of production, it can be difficult to determine the year that the rifle was manufactured. Remington stamped the barrels on their rifles starting in 1921 with a code that will tell you the year and month that it was created. Since Remington rarely changed a rifle's barrel when they serviced it, the date code is a fairly reliable way to determine the age of the rifle.

Since 1962, Remington has built its Model 700 rifle around a centerline firing and bolt-action. According to the Modern Firearms website, the accuracy, versatility and sturdy construction of the Remington R700 has made it one of the most widely used rifles in the United States. The US Marines and many police forces equip snipers with upgraded variants of the R700; and hunters and competition shooters can modify their R700s to suit their specific needs.

Combat knives come in many shapes and sizes. Understanding their differences can help you prepare to survive in the wilderness or defend yourself. Often a knife's design offers clues about how it can be used.

Ballistic gelatin, sometimes referred to as ballistic putty or medical gelatin, is the ideal substance for studying the impact of projectiles and works well with air rifles. Some air rifles are not much more than a child's toy while others are powerful enough kill an animal the size of deer. The best way determine your air rifle's penetrating power is to study the impact of the air rifle pellets in gelatin by setting up a shooting range.

Cleaning a gun is an important part of keeping the gun from becoming rusty or damaged due to gun powder or dirt. Guns should be cleaned regularly to keep them in good working condition. A bore snake is often used to clean guns. The synthetic material is used to clean out the gun by pulling it completely through once or twice. Like the gun, the accessories used to clean the gun should be cleaned whenever the gun is cleaned, and the bore snake is no exception.