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In this section I would like to share my experience of underwater guns operation and repair, since this topic is essential and called-for in the hunters’ circle.

The material will be attached to a specific product, therefore each gun taken to the “surgical table” will be meticulously analyzed in terms of weak and strong points of the design and “spread out” on a five-point scale and in numerical expression in the following nominations:

Ergonomics (how well the grip fits the hand, whether trigger enclosure squeezes a finger in a thick glove up to stagnation of circulation in the latter, etc…)

Functionality (operation and reliability of the line dropper, adjustment of the trigger mechanism, influence of line dropper operation on the release smoothness etc.)

Friction ratio of barrel and piston unit (which is understood as the disparity of harpoon dynamic pressure on measuring scales in terms of reciprocating action attributed to air pressure in the receiver equal to the ultimate one (stated for example by Italian manufacturers) - 30 kg. The less this ratio is, the more efficiently compressed air energy is transferred to the harpoon at the moment of shooting. It is clear that in case of the ratio tenting to zero, air slackening is possible)

Quality of manufacture (quality of treatment of both static elements of the structure and mechanisms, quality of used steels and other materials; generally everything characterizing the product as it is)

General operational reliability (how long the gun is operated under normal conditions declared by the manufacturer without significant breakdowns)

Personally I prefer to distinguish between “field” repair (which can be carried out on one’s knee on the river bank) and “specialized” repair requiring a set of tools, original or matched (manufactured) spare parts and sufficient skills.

Well, colleagues, let’s take a look at all the ins and outs and what needs repair!