Winchester barrel pad identification

[JackC1425]

Looking for some clarification on the type of pad for this example.. I am referencing Babcock's Photo Essay and at times I can stare at the picks with "description" akin to a puzzle with no solution so I submit to the expert panel here.. My call is it is an "medium pad barrel." It resides on my 2.3 Win.. Thank you all..

WRA Barrel by Jack, on Flickr

WRA Barrel by Jack, on Flickr

[RCS]

Here are some photos from original barrel and receiver groups, WRA s/n 102740 still has a small import stamp
on the barrel. Early 1941 barrels had the long pads and most had the drawing number that read from the op rod
side - but there are always exceptions

[JackC1425]

I appreciate the photo's! This barrel is not native to the receiver but as far as I can tell is a "fit" for the serial number range. Drawing number reads from the clip latch side..

[JackC1425]

Markings under the Op Rod along with some misc. photos of the back end of the rifle..

Winchester M1 by Jack, on Flickr

Winchester M1 by Jack, on Flickr

Winchester M1 by Jack, on Flickr