_GOTOBOTTOM
Armor/AFV: British Armor
Discuss all types of British Armor of all eras.
Hosted by Darren Baker
Pounder Measurements
210cav
Visit this Community
Virginia, United States
Joined: February 05, 2002
KitMaker: 6,149 posts
Armorama: 4,573 posts
Posted: Thursday, January 25, 2007 - 11:05 PM UTC
I realize the British used the weight of a round to designate a weapon system (25 pounder, 18 pounder, etc). Can someone direct me to a source that specifies of how to translate pounds to millimeters?
thanks
DJ
Davester444
Visit this Community
England - West Midlands, United Kingdom
Joined: March 09, 2005
KitMaker: 850 posts
Armorama: 548 posts
Posted: Friday, January 26, 2007 - 12:21 AM UTC
Hi DJ

I presume you want to know what the actual calibre of these guns were. Here's four of the most common:

25 pounder - 87.5mm
18 pounder - 84mm
17 pounder - 76.2mm
6 pounder - 57mm

I hope they're of some use to you.

Dave
210cav
Visit this Community
Virginia, United States
Joined: February 05, 2002
KitMaker: 6,149 posts
Armorama: 4,573 posts
Posted: Friday, January 26, 2007 - 01:16 AM UTC

Quoted Text

Hi DJ

I presume you want to know what the actual calibre of these guns were. Here's four of the most common:

25 pounder - 87.5mm
18 pounder - 84mm
17 pounder - 76.2mm
6 pounder - 57mm

I hope they're of some use to you.

Dave



Dave-- that's what I am looking for....is the Comet 77mm main gun also a pound type designation?
thanks again
DJ
Davester444
Visit this Community
England - West Midlands, United Kingdom
Joined: March 09, 2005
KitMaker: 850 posts
Armorama: 548 posts
Posted: Friday, January 26, 2007 - 01:22 AM UTC
This should answer your question. Quote from Wikipedia:


Quoted Text

The tank designers opted to use a highly modified version of the 17 pounder, the 77 mm (despite the fact that it was still of the same 76.2mm calibre as the 17 pdr it was named the 77mm because it used different and non-interchangeable ammunition to the 17 pdr) that had a lower muzzle velocity than the O.Q.F 17-pdr.



Dave
210cav
Visit this Community
Virginia, United States
Joined: February 05, 2002
KitMaker: 6,149 posts
Armorama: 4,573 posts
Posted: Friday, January 26, 2007 - 01:25 AM UTC
Dave-- thanks again.. Comet is next on the work bench. I ordered the after market market and gun tube from Lucky Models and am awaiting their arrival.
Appreciate your help
DJ
3rdRTR
Joined: October 30, 2006
KitMaker: 12 posts
Armorama: 10 posts
Posted: Friday, January 26, 2007 - 02:15 AM UTC
You cannot 'translate' pounds into millimeters unfortunately, all you can do is to discover the actual barrel diameter for each type.
 _GOTOTOP