Mirror gap
Mirror gap: the clearance between the geometric element of the chamber, on which the cartridge rests in its most advanced position inside the chamber, and the mirror of the breech or breech mechanism of the firearm (front of the receiver, mirror of the revolver frame); during inspection, the mirror gap is determined as the distance between the mirror of the firearm's breech and the base of the caliber-datum for measuring the gap, the size of which equals the size of the minimum chamber
Source: "Civil and Service Firearms, Industrial and Special Purpose Devices. Safety Requirements and Methods of Safety Testing. GOST R 50529-2010"
(approved by Order of Rosstandart from 29.04.2010 No. 72-st)
Понятие «зазор зеркальный» мужского рода.
| Падеж | Единственное число | Множественное число |
|---|---|---|
| Р | зазора зеркального | зазоров зеркальных |
| Д | зазору зеркальному | зазорам зеркальным |
| В | зазор зеркальный | зазоры зеркальные |
| Т | зазором зеркальным | зазорами зеркальными |
| П | зазоре зеркальном | зазорах зеркальных |