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Crosman AirSource 1077
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Air guns may be found in two types, the air rifle plus the air pistol. As the label indicates, each drive their projectiles with the employment of air, but the air is compressed in one way or another.
Historically, the air gun certainly existed in one form in the 16th century as there is a surviving example within the Stockholm museum! By the 17th century, air guns had developed enough to be used in hunting. All of these illustrations were usually in the form of air rifles, and by this time they were developed enough to allow them to penetrate 1 inch solid timber at a distance of 100 paces. Relatively impressive even for these days!
The pressures attained on a range of these types of guns amounted to some 800PSI which was incredible. These days however, we are restricted to low pressure purely for basic safety and legal reasons. The fact is in certain countries, air guns continue to be classified as firearms, therefore you wouldn't be capable of buy or use one unless a person had a license.
Power To The Air Gun
Nowadays we have a choice of types of air gun. By that I mean the choice of how we power that gun. It's still principally driven by air, however the method of how that air is compressed varies a lot.Let's start looking briefly at each of the choices and see what advantages or disadvantages each provide.
CO2 Air Guns
Similar to the Crosman 1077 rifle referred to somewhere else, these type of guns are driven by CO2. The CO2 is stored in either little 12g caplets, or containers, or in larger 88g storage containers. Both of them are fixed to the gun. The more compact caplets offer around 50 - 80 shots before you need to replace, while the bigger CO2 canister provides a substantial three hundred - four hundred shots!
Obviously, the most significant advantage of this method is the continuity of fun! You aren't continuously stopping to re-charge the gun, and if you are hunting small vermin, this really is fairly essential as you won't have time to re-pump and aim at a critter as it's likely they will be a long way off by that time! The downside is you have to pay for the CO2.
Break Barrel Weapon
As the name suggests, you 'break' the barrel at the place where it is hinged, to be able to compress a metal spring that is hidden away within the weapon. The advantages of this gun is that the air is 'free'. All that is needed is a but of muscle power to compress the spring. Some air guns require quite a bit of muscle power and that's one of the drawbacks of this type of gun. Another disadvantage is the time taken between every shot. Not so bad if you are simply plinking, but a disaster if you are vermin hunting and scare the thing off with your very first missed shot! Some makes of weapon use a 'gas spring' instead of a coiled steel spring. Some brands which make use of of this are Weirauch, Crosman and Arowsmith.
Pneumatic Weapon
This is where you make use of pre-compressed air as the source to fire the pellet. Compression is accomplished by priming a lever somewhere about the gun. The pneumatic gun includes a few variations. These are:
- single stroke - where you only need to prime the pump once on the weapon for it to be ready to fire
- multi stroke - where you need to prime the pump lever around 2 to 10 times to achieve variable power
- pre charged pneumatic (PCP) - where you charge the reservoir not from a lever fitted to the weapon, but from an air reservoir such as a diving cylinder or simply a hand pump
Like the CO2 air guns, these offer an advantage where you want uninterrupted shooting, as you can accomplish up to around 500 shots on a good reservoir. The disadvantage is usually the higher cost of acquisition since the production of these types of gun is costlier. In addition, it is important to buy a decent high pressure hand pump or a diving cylinder. Utilization costs are going to be lower though than say a CO2 weapon.
That's it. A short synopsis of air guns and an outline of their relevant good and bad points. I hope it helps any choices you need to make when considering an air rifle or air pistol.
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