The word "Ammunition" is derived from a French word, "la munition" which related to any material that was used for war. These days, it's commonly referred to as "ammo". In a historical context, it meant projectiles, such as bullets and shot, together with their fuses and primers, that were fired from guns and canons or otherwise propelled. Today, the term encompasses a broader selection of weaponry including nuclear, biological, chemical, or explosive material, such as rockets or grenades.

The sole purpose of ammunition is to damage a selected target, whether that's through direct force (as in being hit by a bullet or projectile) or indirect force (as in being caught in an explosion).

By far the most common type of ammunition are bullets. Their calibers range from .17 up to .50 for modern small arms. Airguns and BB guns use a .177 caliber bullet.

You might be surprised to learn that people from quite varied walks in life have an interest in ammunition - from deer hunters to full-time experts in ballistics, forensics, metallurgy, chemistry, and manufacturing disciplines. Then there are current or former military or law enforcement professionals. On the more passive side are historians (particularly of the Civil War) and hobbyists interested in the evolution of ammunition, and the amazing variety of ingenious designs that have been tried.

Traditionally, when you wanted to buy ammunition, you'd head down to your local gun store. Of course, these days you can get ammo for sale online. But you need to be sure you know what it is you're looking for. There's more to buying ammo online than simply looking for the cheapest prices. Other factors should be taken into account so you're sure you get exactly what you want.

What you intend to hunt will determine the type of bullet you need. If you're doing long range shooting or hunting, a hollow point or softer bullet may be a better choice. These allow the bullet to open up even after they've lost a lot of their energy downrange.

For closer shots, choose a harder, jacketed round. These remain intact on impact and provide deeper penetration.

If accuracy is important to you, take a look at match grade ammunition. The consistency in its loads means its a favored choice in shooting competitions. But that consistency is probably more than most hunters need and is considerably more expensive than regular ammunition.

You also need to think about how much ammunition you need. Find a source where you can easily get replacement stocks of the same ammunition so you don't end up switching types and having to head down to the shooting range to sight in the new ammo. It takes time to zero in a rifle and ammunition isn't that cheap, even if you're buying surplus ammo. So save yourself some time and money.

Do a bit of research online when looking at ammunition prices and availablility and remember that the cheapest solution isn't always the best. It will save you money and time in the long run.