Looking for some insight. I found a left hand Weatherby with a fiberglass stock and a Leupold M8 4x scope. It is chambered in 30-06 and the barrel has some horizontal porting at the muzzle. In looking at Weatherby's site, it is a Japanese made rifle.

Any insight on when the first lightweights were made? Currently have it on hold and was looking for any experiences with the Japanese made Weatherbys.

As a long time Weatherby user, in my opinion, the jap Weatherbys are the best. The horizontal porting is probably a "Magna Port" job.

Jorge is correct.
The Jap serial numbers had a "H" prefix.
John

Wouldnt that be a reft handed Weather by?

I have a Japanese made 378 and its ser no is H469016