INERTIAL BULLET TRAP FEATURES DESCRIPTION

The "Inertial Bullet Trap System" has been inspired by the inertia principle and thermodynamics. It makes it possible to stop the bullet course by dissipating its kinetic energy and transforming it into heat because of the friction due to the impact. This is possible thanks to the special trajectory set by the conformation of the system.

The ballistic-type steel sheets hardness range is 480 to 530HB and its thickness is from 4 mm to 10 mm (thickness is determined by the type of weapons that will be used), with exceptional impact, wear and high temperature resistance. The specific feature of these ballistic plates is that if hit by any kind of projectile with an impact angle of less than 30 degrees they can’t be deformed and / or scratched.

The angles and positioning of these plates have been studied so that the first impact of projectiles on the system is always less or equal to an angle of 10 °, allowing the bullet to remain intact during the first friction without undergoing any fragmentation.

With the first front ballistic impact on metal, the projectile begins its deceleration that continues facing the backward plates with less kinetic energy and less heat load, therefore further reducing its fragmentation.

The "Inertial Bullet Trap System" has two sections: the first one consists of two parallel ballistic plates inclined to converge towards the entrance of the system. This results in a slit of 40mm which allows the passage of the projectile. The plates are positioned respectively: the lower sheet is inclined at 2 degrees from the ground plate (made perfectly level), with the upper plate inclined at 10 degrees, the two plates can be both extended on the front until the desired size is reached.
The second section behind consists of two spirals of exclusive semi circular irregular shapes, where the projectile will definitively stop, performing the trajectory imposed by the spirals.

The spirals are made of sheets assembled on specially shaped metal anchor supports, which enables them to be placed in compliance with the required inclinations.

The exclusive system adopted for the assembly of the two rear spirals is designed to easily create the semi-circular shape of the system. Otherwise it is extremely difficult to be carried out because of the hardness of the plates that must be used.

This unique system allows bullets or their fragments (because of their high speed assume a high centrifugal force approaching the spirals), to bounce from one sheet to another because of their overlapping position. They compulsorily perform the desired trajectory without sliding on any surface. This greatly reduces friction and allows them to lose the accumulated heat; thus significantly reducing lead overheating and avoiding its sublimation.

The unique system has been designed to be modular, so that it can be developed horizontally with overlapping modules (as shown in the attached images), without any obstacle in it through a specially designed dedicated structure.

This modularity allows the construction of bullet trap installations of any size to adapt to any shooting range, in any category and type: both indoor and outdoor, as well as for civil and military. This allows the collection of bullets/fragments into the collector placed at the bottom of the equipment  for a proper recovery and easy disposal.

The almost absent production of powders of any nature allows in indoor shooting ranges to drastically reduce the clogging of the exhaust system filters, where existing, and even prevents their installation as threshold values are met on time. Consequently the air quality of indoor ranges will always be within the reference values.

The use of the "Inertial Bullet Trap System" eliminates the operating costs as it dramatically reduces maintenance costs and downtime of the facility.