Hi, you from arty?
Gun/Howitzers are designed so that the trails are relatively
heavier and so no need holding down.
However, there was something wrong with the balance of this
particular gun. When fired, the gun rocked (the barrel moves down,
trail up, then barrel up , trail down) a few times. It is the only
gun that I have seen that did this.
Just curious, but why do you say that it is an M68? By the short
barrel length? This particular gun had characteristics of both M68
and M71. The short barrel length of the M68 and the pneumatic
rammer of the M71. Anyway, the SAF called it the M71.