The Goryainov 1936 was a semi automatic rifle of russian origin. While working in TsKIB SOO I had a chance to hear from Yu Platonov - Head of the theoretical division and one of the veterans organizations - such a story. Somewhere in the mid-1990s, IY Stechkin conducting tests Silent revolver OTs-38, collided with an unusual effect. After another shot suddenly I discovered that the trigger of a revolver jumped back and stood cocked! About randomness is not out of the question - the effect is repeated regularly and interfere with debugging weapons. In fact, OC-38, like any other classic revolver has no razobschitelnogo mechanism and the trigger is to put the hammer cocked can not. But, apparently, after a shot from concussions trigger more turned toward the starting position and the trigger