Unsourced material may out of sight out of time pdf challenged and removed. The PSO-1 was, at the time of its introduction around 1964, the most technically advanced telescopic sight ever designed for a mass-production designated marksman or sniper rifle.
The PSO-1 was specifically designed for the SVD as a telescopic sight for military designated marksman activities. The current version of the sight is the PSO-1M2. This telescopic sight is different from the original PSO-1 only in that it lacks the now obsolete infrared detector. The metal body of the PSO-1 is made from a magnesium alloy. The PSO-1 features a battery-powered red illuminated reticle with light provided by a simple diode bulb. It features professionally ground, fully multi-coated optical elements, a baked enamel finish for scratch protection, and an attached, quick-deployable, extendable sunshade. Considered the higher end of Soviet military side-mount telescopic sights, the quality of the PSO-1 is higher than most other PSO-style telescopic sights.
Modern fixed magnification military high-end-grade sniper telescopic sights scopes intended for long-range shooting usually offer one or both of these features. The positioning of the scope’s body to the left of the bore’s center line may not be comfortable to all shooters. 50 m or 100 m increments for engaging point and area targets at ranges from 100 m up to 1,000 m. At longer distances the shooter must use the chevrons that would shift the trajectory by 100 m per each chevron. Inevitable BDC-induced errors will occur if the environmental and meteorological circumstances deviate from the circumstances the BDC was calibrated for. Marksmen can be trained to compensate for these errors. Besides the BDC elevation or vertical adjustment control of the reticle, the windage or horizontal adjustment control of the reticle can also be easily dialed in by the user without having to remove turret caps etc.