90-MM RECOILLESS RIFLE, M67

FM 23-11, 6 July 1965, is changed as follows:
Page 4. Paragraph 3 a (6) (as changed by C2 ) is
superseded as follows:
(6) Maximum effective range:
HEAT, TP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400 meters
Antipersonnel. . . . . . . . . . . . . . . . . . . . . . . . . . . 300 meters
Page 4, paragraph 3b. A column for “antipersonnel”
is added as follows:
(1) APERS.
(2) 6.79 pounds.
(3) 3.97 pounds.
(4) 1250 feet per second.
Page 6, paragraph 8b (1) (c). In line 2, “clockwise”
is changed to read “counterclockwise.

20. Classification
There are three authorized rounds for the 90-mm
recoilless rifle, M67. These are TP M371, HEAT
M371E1, and 90-mm canister, XM590E1. The target
practice (TP) round is not standard, but it is
available for issue in certain areas. It is ballistically
identical to the high explosive antitank
(HEAT) round but contains only a small spotting
charge as the projectile filler. The 90-mm canister
round, XM590E1, is a fixed type antipersonnel
found which functions at muzzle action.