Jump to content


Photo

Cooling Machine Gun Barrels


  • Please log in to reply
27 replies to this topic

#21 Daan

Daan

    Member

  • Members
  • PipPip
  • 2,153 posts

Posted 23 October 2019 - 1252 PM

 

Heavy barrels are still kinda used. Not all multibarrel MGs use external power, both GShG and YakB-12,7 are internally powered.

 

 

Does any machine gun besides the M2 .50 cal use a heavy barrel?

 

Yeah, the French AA-52 / F-1 medium machine gun.

1920px-Mitrailleuse-IMG_1728.jpg


  • 0

#22 bojan

bojan

    Crew

  • Members
  • PipPip
  • 11,777 posts

Posted 23 October 2019 - 1342 PM

IIRC Czech UK vz.59 also has light and heavy barrel.


  • 0

#23 shep854

shep854

    Member

  • Members
  • PipPipPipPipPipPipPipPipPipPip
  • 20,491 posts

Posted 23 October 2019 - 1553 PM

I've seen video of British machine guns crews using wire stands to support cooling barrels as they are changed out in rotation.


  • 0

#24 bojan

bojan

    Crew

  • Members
  • PipPip
  • 11,777 posts

Posted 23 October 2019 - 1709 PM

Pouring water on them is a time honored tradition (if water is widely available, if not other sources of water were used :) ). Local rifle tests from the '60s had part with "forced cooling" (after firing certain amount of rounds) - both in the water and crushed ice (representing snow), to see if it damages barrel.


  • 0

#25 shep854

shep854

    Member

  • Members
  • PipPipPipPipPipPipPipPipPipPip
  • 20,491 posts

Posted 23 October 2019 - 1754 PM

Pouring water on them is a time honored tradition (if water is widely available, if not other sources of water were used :) ). Local rifle tests from the '60s had part with "forced cooling" (after firing certain amount of rounds) - both in the water and crushed ice (representing snow), to see if it damages barrel.

:D I heard one soldier mention that, during cold-weather training in Norway, they had to be very careful where they placed hot barrels or they could sink right through the snowpack... 


  • 0

#26 Panzermann

Panzermann

    REFORGER '79

  • Members
  • PipPipPipPipPipPipPipPipPipPip
  • 16,604 posts

Posted 24 October 2019 - 0445 AM


Ooops, I lost my barrel in the snow! (like fondue)

 

Heavy barrels are still kinda used. Not all multibarrel MGs use external power, both GShG and YakB-12,7 are internally powered.

 
 
Does any machine gun besides the M2 .50 cal use a heavy barrel?

Yeah, the French AA-52 / F-1 medium machine gun.
https://upload.wikim...se-IMG_1728.jpg

 
Swiss MG87 beats that easily: https://www.mediathe...0d-df086f1372d7(link, cause it won't link easily)
 
special variant of the MG 51 (itself a heavy swiss made mutant of the MG42) for coaxial mounting in Panzer 87 (Leopard 2 A4CH)




Though I do not think the barrel is that thick on a AA-52. It just happens to have a slim receiver making the barrel look fat.

Edited by Panzermann, 24 October 2019 - 0451 AM.

  • 0

#27 Panzermann

Panzermann

    REFORGER '79

  • Members
  • PipPipPipPipPipPipPipPipPipPip
  • 16,604 posts

Posted 24 October 2019 - 0456 AM

and the PKT has a thicker barrel of course:
 
3bd98aeedb5c132e8c9b707a8ca23592.jpg


PKTM from ROSBORON Export: http://roe.ru/eng/ca...hine-guns/pktm/



c39947e69e2306fe7b49bb394791b4292e1cbc93
(just found the image funny)
  • 0

#28 bojan

bojan

    Crew

  • Members
  • PipPip
  • 11,777 posts

Posted 24 October 2019 - 0701 AM

PKT used barrel adopted from SGMT, as PKM barrel, being shorter would have required changing range scales on the 1000s of tanks.


  • 0