CHAPTER 8 TYPICAL FIRE CONTROL INSTRUMENTS

TM 9-258

CHAPTER 8

TYPICAL FIRE CONTROL INSTRUMENTS

Section I. TELESCOPE

panoramic types. Telescopes are incorporated in some

8-1. General. Telescope is the standard nomenclature

designation for instruments of a number of different

periscopes, others are used in constructing binoculars

types. Some typical telescopes illustrated and described

and rangefinders.

in this section are designed to be used for observation;

8-2.

Telescope (Rifle).

others are designed to aim weapons. Of these some

a. The telescope illustrated in figure 8-1 is

telescopes are of the straight tube type; some

typical of those designed for use with the rifle for direct

observation telescopes are of the prism-offset type; other

fire.

telescopes are of the articulated, elbow and

Figure 8-1. Telescope (Rifle)--assembled view, reticle pattern.

b. The telescope is secured in a rear sight

drawn seamless steel tubing about 1 inch in diameter

with an adapter shrunk onto the rear end. The front end

mount which is in turn secured to the rifle so that the

of the tube is enlarged to about 1 inches to

telescope and mount move with the rifle in azimuth and

accommodate the objective lens assembly.

elevation. The gunner aims with that part of the reticle

which represents the desired deflection and range. The

8-3.

Telescope (Sniper's Sighting Device).

reticle may be illuminated for night operation.

a. This telescope (fig 8-2) is a straight tube-

c. This telescope has a slender tube and

type telescope with a fixed focus and is designed for

enlarged eyepiece with a 2.8X magnification and

direct sighting. It is typical of those designed for use as a

approximately 70 3 minutes field of view.

sniper's sighting device with rifles to aid in obtaining

d. The telescope body is a piece of cold-

more accurate fire.

8-1