Question for mortar men, moden Army

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Bob Wright

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I was watching som YouTube footage of troops firing the 120 mm mortar. Very noticible was the rounds were fin stabilized.

Back in my day, the 4.2" mortar had a rifled bore. The 60mm and 81mm were fin stabilized. (The only mortar I ever fired was the 60mm and these with inert practice rounds, propelled by a 12 ga. shotgun blank.)

Bob Wright
 

Wvfarrier

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I think it depends on the payload but all of the mortars we used (Army 92-2022) were fin stabilized
 

Bob Wright

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I think it depends on the payload but all of the mortars we used (Army 92-2022) were fin stabilized
The "four-duece mortar" (4.2") was a pre World War II weapon designed originally as a chemical warfare mortar. It had greater range and though never used for poison gas, was a great artillery piece for the Infantry battalion.

Bob Wright
 

Bob Wright

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And.............I notice the mortar rounds have amber colored rings around the body of the round just ahead of the fins. I assume these are auxilliary powder charges? And, in one clip, there is a noticable flame in the muzzle blast.

Bob Wright
 

Bob Wright

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As a matter of interest, I asked my pastor yesterday about the rifling in the 4.2" mortar, and he confirmed it was indeed a rifled bore weapon. He also added that the fired round had to make a certan number of revolutions before the fuse was armed, a "bore safe" type of round.

Bob Wright
 

magpouch

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I've always wondered how accurate a morter can be? Given a pre prepared defensive position (let's call it "ideal conditions), how likely is it to be able to hit a large vehicle with a morter?

Just curious is all...
 

Bob Wright

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I've always wondered how accurate a morter can be? Given a pre prepared defensive position (let's call it "ideal conditions), how likely is it to be able to hit a large vehicle with a morter?

Just curious is all...
Mortar rounds are not armor piercing, but high explosive. A near miss of an unarmored vehicle would cause damage from the blast and fragmentation effect. Mortars are primarily anti personnell weapons or against lightly fortified positions. The original use of mortars was against troops in trenches.

Bob Wright
 

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