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4.2. Features of fire entrance damages of coarse calico at shots ПТД-2 from a revolver "Viking"


At shots in an emphasis to a tissue of target ПТД-2 from a revolver "Viking",
On its facial surface round damage, on a site in width to 10
15 sm, observed soot adjournment.
Thus round damage a soot
Had dark grey colour, and on excision from it - was light grey colour.
The die a print in all experiences was not observed (the appendix 13) see.
At shots from distance of adjournment of a soot of 0,5 sm on coarse calico were the sizes from 11 h 10 sm to 13 h 12 sm and had irregularly expressed radiant form (fig. 4.3.).


Fig. 4.3. Adjournment of a soot of the radiant form on a surface of the coarse calico amazed ПТД-2 from a revolver "Viking", from distance 0,5 see
The greatest intensity of beams of a soot observed in 1-2 sm from edges of entrance damages. The soot on targets was from dark grey to svetloserogo colours, with reduction of its intensity on periphery. External contours of a soot had indistinct character.
At shots from distances in an emphasis and 0,5 sm intensive adjournment of a soot from a target underside - along the edges of damages is noted.
At shots from distance of 20 sm the soot on targets has been weakly expressed, light grey colour, settled down round entrance damage and a little below it, on a site in width of 10-13 sm, had diffusive character. In a projection of borders of adjournment of a soot individual applyings of particles of the semiburnt down gunpowder and lining ПТД-2 were taped.
At shots from distance and more visually adjournment of a soot round entrance damage on one of targets did not define of 40 sm.
On targets from the coarse calico, amazed from distances from 20 sm to 300 sm, a wiping corbel visually it is not expressed. Darkening (superficial serovato-black pollution) extremities of the damaged threads of a tissue, vystojashchih in a damage lumen is noted.
During experiences at shots ПТД-2 from a revolver "Viking", from races-standings in an emphasis and 0,5 sm, there was an ignition of the extremities of the damaged threads of a basis and a duck of a tissue. It is possible to explain it design features of a revolver at which diameter of the channel of a trunk from the party dulnogo a section (12 mm) is more than diameter ES (10 mm) and thereof the shot flame, advancing a bullet start, influences a target more long time (see gl. 3).
Defect of a tissue corresponded to the sizes of damages. Along the edges of damages defined on 4 radial ruptures of a tissue in length of 12-20 mm (in an emphasis)
The damages arising on tissues of targets in the conditions of shot ПТД-2 from a revolver "Viking" (the appendix 15) from distances in an emphasis and 0,5 sm (fig. 4.4 see), had the general square form the beginnings of beams of radial ruptures of a tissue (along threads of a basis and a duck) were which angles. The sizes of damages had the sizes, accordingly, nearby 12 h 12 mm and 11 h 11 mm.


Fig. 4.4. Damages on coarse calico at shots ПТД-2 from a revolver "Viking", from distances in an emphasis () and 0,5 sm ().
The extremities of the damaged threads are singed.
And 14-25 mm (at distance of 0,5 sm). Threads in edges of damages have been singed. The square form of damages is a consequence of ignition of edges of damages that has not allowed to estimate a morphological picture of damages caused immediately ES ПТД-2 on the given distances of a shot.
The damages arising on a tissue of targets at shots from distance 20,40, 60, 100, 200 and 300 sm had following features:
From distance of 20 sm: damages had the roundish form, 11x11 mm, with defect of a tissue («a minus a tissue»), 5x6 mm. Along the edges of damages defined 4 radial ruptures along threads a duck and tissue bases, length 10 20 mm;
From distance of 40 sm: damages had oval (more close to square) the form, 10x10 mm, with defect of a tissue («a minus a tissue»), 6x6 mm. Along the edges of damages of 2-3 radial ruptures of a tissue, length 1-3 mm;
From distance of 60 sm: damages had the oval form, 10 h 12 mm, with defect of a tissue («a minus a tissue»), 4x5 mm. Along the edges of damages of 2-4 radial ruptures of a tissue, length 4-bmm;
From distance of 100 sm: damages had oval (more close to square) the form, 10x10 mm with defect of a tissue («a minus a tissue»), 4x5 mm. Along the edges of damages of 2-4 radial ruptures of a tissue, length 1-2 mm;
From distance of 200 sm and 300 sm of damage had oval (close to square) the form, the sizes, accordingly, 9 h 9 mm and 8 h 9 mm (fig. 4.5). Defects of a tissue have not been expressed, in the centre of damages of various length of a thread with razvoloknenymi the extremities. A number of damages was in a kind «P - figurative» rupture of a tissue with formation «a flap on a leg», 3x3 the mm, on the one hand the damage bridged to edge. Threads of a basis and a duck in «a flap on a leg» are condensed and uploshcheny. Along the edges of damages defined 1-2 radial anguishes of a tissue, length 1-2мм.


And
Fig. 4.5. Damages on coarse calico at shots ПТД-2 from a revolver "Viking", from distances of 200 sm () and 300 sm (). Threads of a tissue of various length acting in damage () and a fragment of "flap" with the squeezed threads ().
As a result of the spent researches it is established, that on a surface amazed bjazevyh targets there was an adjournment of the big number of particles of products of a shot. Them defined on distances from 0 sm to 100±2,7 sm, from dulnogo a section of a trunk of the weapon, the greatest quantity of particles was on 60 sm where it was revealed about 51 % from all number of particles. Rubber particles it is not taped.
Characteristic difference for shots ПТД-2 from a revolver "Viking" was presence on a surface bjazevyh targets of particles of the scorched lining of the cartridge. The maximum distance on which particles of the scorched lining were defined, has made 40 sm from dulnogo a trunk section, thus the maximum quantity has appeared on distance of 20 sm (57 % from the general number of particles of a lining) from dulnogo a trunk section. Morphological features of particles of a lining did not differ from those, described in gl. 3 (at research of particles on «sledovoj to a path»).
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Scientific source Musin Eldar Hasenovich. MEDICOLEGAL CHARACTERISTIC of DAMAGES FROM the GAS WEAPON ELASTIC SHELLS TRAUMATIC ACTIONS (experimental research). DISSERTATSIJAna scientific degree competition kaddidata medical sciences. Moscow - St.-Petersburg. 2006

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