I'd put my money on the 'Made in the USA' Leupold VXIII.
I still want a scope with the best eye relief for a 300Wby
I would buy the made in the USA 3x9x40 ziess conquest which offers a full 4" of eye relief at all power settings.This is more than the leupolds at the highest powers.The conquest also offers better quality lenses and coatings which result in a brighter scope in low light.