Crossbow for spearfishing is an extremely popular weapon among avid fishermen. This fishing tool is distinguished primarily by high firing accuracy and reliable design. The best crossbows for spearfishing always look preferable along with the same pneumatic guns due to the special ease of use.
Principle of operation
By design, a speargun-speargun practically does not differ from its land "counterparts". In fact, the device is presented in the form of a body with a hollow under the arrow and tensioned rods. The latter are held in a charged position by a special harpoon, which is fixed using trigger elements. Pressing the trigger leads to the release of rods that give the arrow the necessary acceleration.
Barrel type
The crossbow for spearfishing contains a head part, which can be represented in such variants:
- Open - offers the hunter better visibility and is characterized by increased power.
- Closed - stands out among other solutions with improved accuracy, which is ensured by the presence of twin rods.
- With one traction - it is a good choice for hunters who are willing to sacrifice accuracy for maximum power.
- Mixed - a specific ring pair traction is used here, which makes it possible to increase the power of a weapon without compromising accuracy. Such a head is best suited for catching large fish.
- Hydroformed barrel - allows you to get a perfectly smooth, calibrated shot path to perform the most accurate shooting.
As for the rods, they come in different thicknesses and lengths. For hunting relatively small fish, it is advisable to use crossbows, where the head is equipped with thin rods. For the extraction of a large "catch", the thickest thrusts are suitable.
Benefits
Among the advantages of crossbows for spearfishing are the following:
- minimal weapon swing during firing, which is reflected in improved accuracy;
- simplicity of construction;
- affordable cost;
- during operation, there is no need to use additional accessories, for example, a pump, which acts as a mandatory tool for charging pneumatics;
- silent shooting.
disadvantages
The obvious disadvantages that distinguish the crossbow for spearfishing are: increased likelihood of damage to the released arrow, impressive dimensions of the structure. In addition, the user does not have the ability to adjust the firing force, and the battle power here is reduced by an order of magnitude compared to air rifles.
DIY speargun
To begin the manufacture of weapons for underwater fishing with your own hands should be to find a suitable spring. The diameter of the turns of the latter should be about 12-15 mm, and the pitch should be at least 2 mm. It is necessary to take into account the fact that the springs work in compression. Therefore, the length of this element should exceed the dimensions of the body of a homemade crossbow by about 100-200 mm. Consideration should be given to possible spring shrinkage as the weapon is used.
As for the parameters of the trunk, the most convenient for hunting in most bodies of water will be a length of about 60-75 cm. Any lightweight tube with side openings is suitable for the role of this structural element for unhindered water exit. In such a trunk, a recess is cut under the sear. A stub and a muzzle are also machined from metal. Traction will be attached to the latter later.
To make a full-fledged crossbow for spearfishing with your own hands, you will need to prepare a convenient handle and an effective trigger. The body and handle can be cut out of wood or metal plates. The finished structure is connected to the stem with bolts.
To complete the crossbow for spearfishing, the installation of a trigger mechanism, which consists of a trigger, a sear, a spring and a fuse, is required. The preparation of these parts is a fairly simple locksmith work that any experienced master can handle.
The final element of the crossbow is a fishing line ejector. It can be machined from sheet metal. The finished plate is attached to the barrel plug with several screws. After winding an arrow, a tench is attached to the front sight of the weapon and placed under the ejector. When the shot is fired, the rope comes out from under the plate and begins to unwind after the outgoing arrow.
In conclusion, it remains only to deal with the crossbow sighting. Then you can go directly to the destruction of underwater targets of medium and large sizes at a distance of about 3 meters.