This M-38 with a 106MM Recoilless rifle (dubbed the M40). Below is a short video, followed by a press photo that is available on eBay.
Press Photo from eBay:
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“1971 Press Photo US troops test jeep-mounted 196mm M-40 anti-tank rifle in MD. This is an original press photo. Guns – Artillery. Crewmen drive the new jeep-mounted 106mm recoilless rifle into firing position during recent tests at Aberdeen Proving Ground, Maryland, in this picture released Tuesday in Washington, D.C., Department of Defense. The battalion anti-tank weapon, designated the M-40, reportedly has greater range and more destructive power than any other weapon available at battalion level.Photo measures 8.5 x 7.75inches. Photo is dated 10-12-1971.”
The Rifle was the M40, no matter where it was mounted. Mounting an M40 on a M-38 didn’t make the M-38 into a M40.
Ron, thanks for the note.
After re-reading the blurb, I see that I misread the photo caption. I thought the M40 was referring to the jeep (which I thought was strange), but it seems it was indeed referring to the rifle.
– Dave
Years ago I watched an avalanche control crew fire a recoilless rifle into a snowbank high above I90 in Washington. I could actually follow the projectile with the naked eye. Perhaps it was a special round just for this purpose.
Did they have much success moving snow?
Yes, it came down on the westbound lanes where the plows were waiting for it.