Mm Recoilless Rifle M

FM 23-11, 6 July 1965, is changed as follows:

Page 4. paragraph 3 a (6). "Maximum effective range—450 meters." is changed to read "Maximum effective range—400 meters." Page 5. Paragraph! b is superseded as follows: b. The reticle is an optical glass disc with an 0.749-inch aperture etched with a metric scale. It is graduated at 50-meter intervals at ranges up to 400 meters, and numbered every 100 meters up to 800 meters. Speed-lead indicator lines are provided at 50-meter intervals up to 400 meters and at 100-meter intervals from 400 to 800 meters. The vertical range line is extended through the 0 line to form a boresight cross. The broken horizontal lines are speed-lead indicators. Each line or space represents 2.5 mph of apparent speed. The curved lines are stadia lines, and are used to estimate ranges to targets of known dimensions. The average tank is 20-feet long and 10-feet wide; therefore, the stadia lines nave been calibrated to coincide with these dimensions from 100 to 600 meters of range. A level vial at the bottom of the reticle provides a zero cant reference for the telescope so that it may be kept level when boresight-ing and firing the weapon (fig. 3).

*This change supersedes C1, 5 April 1967.

Page 5. Figure 3 is superseded as follows: Page 5. Figure 3.1 is added as follows:

Page 5. Figure 3 is superseded as follows: Page 5. Figure 3.1 is added as follows:

M67 Recoilless Rifle

Figure 3. Sight reticle, 11103 sight. Figure 3.1 Sight reticle, M103A1 sight.

Page 6. Paragraph 5.1 is added after paragraph

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