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497
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9971
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MBE
comments
5
date added
2006-02-13
category
Sport
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The Most Powerful Sniper And Antimaterial Rifle In The Whole World
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The Most Powerful Sniper And Antimaterial Rifle In The Whole World

"a soldier lying on the ground with a gun"

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Comments for: The Most Powerful Sniper And Antimaterial Rifle In The Whole World
Mrkim Report This Comment
Date: February 14, 2006 03:45PM

Just curious, anyone have an idea what the tube above the barrel is for?
MBE Report This Comment
Date: February 14, 2006 08:00PM

This is RT-20 (hand cannon 20)
croatian antimaterial rifle.
Caliber is 20 mm Hispano Suiza.
And yes,it can fire AP and HE rounds (HE from AA purposes)
weight is 19.2 kg.
The tube above the barrel is for counter-recoil.
Mrkim Report This Comment
Date: February 14, 2006 09:06PM

So does it vent gasses into the tube to act as a counter recoil device ?
MBE Report This Comment
Date: February 15, 2006 12:51AM

The 20mm Hispano round generates about 4 times more recoil when fired from 20 kg rifle, compared to .50BMG (12.7x99mm) round, fired from 10kg rifle (such as Barrett M95). To make the recoil more or less bearable by the average shooter, the Croatian designers developed a quite interesting counter-recoil system, that uses a reactive principle. The system consist of the large reactive tube, located above the barrel. The forward end of this tube is connected to the barrel at about its middle point. The rear part of the tube forms the reactive nozzle. When gun is fired, some hot powder gases are fed from the barrel to the reactive tube and back, forming a back-blast with reactive force that cats again the recoil forces. The large muzzle brake further helps to decrease the recoil. This reactive system, once popular in large caliber (about 80 - 100 mm and bigger) recoilless rifles, almost never had been used in such relatively small weapons.
Mrkim Report This Comment
Date: February 15, 2006 03:09AM

Thanks MBE !