Page 12 - Сигурност и отбрана - брой 2 - 2023

Сигурност и отбрана, брой 2, 2023 г. Научно списание

weapon configuration. Subsequently, the parameters of the weapon platform
that are significant for the researched phenomenon are derived. On their
basis, the shooting distance is determined and a target suitable to the
purposes of the experiment is developed. The necessary requisites of the
target are an easily distinguishable image for aiming the weapon at the target,
as well as a coordinate system for pinpointing the location of hits. The
dimensions of the target are in accordance with the expected magnitudes of
natural dispersion when shooting at short distances, which is typical for
specialized units. The dimensions of the targeting image are in direct
correlation with the covering value of the weapon platform's aiming devices.
This value is calculated with the use of the following formula (Manual on
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rules of shooting with small arms., 1973) :

×
= (1)

where:
K – covering value of the front sight measured in mm
L – distance to the target measured in mm
p – the size (width/diameter) of the front sight measured in mm
l – distance from the shooter's eye to the tip of the front sight measured
in mm

The distance from the shooter's eye to the tip of the front sight (l)
depends on the physical characteristics of the shooter.
In order to limit the tearing of the target upon contact with the projectile
and to accurately record the results of the shooting, the target is mounted on
a stand with suitable padding.
The next step consists of firing with and without a suppressor on the
target created for that purpose. The number of rounds fired in each series
needs to be sufficient to determine a central point of impact (CPI), while the
resulting perforations do not occupy a significant part of the target area,
causing difficulties in processing the results.
After conducting the shooting, each of the experimental targets is
digitalized for the purpose of using precision software measuring tools in the
processing of the obtained results.
The determination of the value of the grouping of the hits is performed
by generating the circle with the smallest possible diameter, accommodating
all the perforations. The accuracy of the shooting is determined depending
on the values of the average deviation from the dispersion axes. It is

1 Наставление по правила за стрелба със стрелково оръжие. (1973). Държавно военно издателство,
12. // Nastavlenie po pravila za strelba sas strelkovo orazhie. (1973). Darzhavno voenno izdatelstvo, 12.
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