http://www.gunbroker.com/Auction/ViewItem.aspx?Item=479627228

Anyone know what brand name that crown-shaped proof marking on the breech end signifies?

It looks like one from a Parker Hale action I have, but I am not aware of them marketing barrels to gunsmiths?

I am interested because a tapered/threaded/short-chambered 338 WM barrel in my possession has the same marking.

Thanks all,

Efw

I'm probably wrong but that looks more like a proof mark than a maker's label. Maybe it came from the UK or europe and was run through a proof house?

I think you're right

My research indicates that mark used by makers in Liege, Belgium

yup, Liege

Excellent thank you gentlemen!