Originally Posted by Remington40x
An original Lyman Alaskan might work as well. If I recall correctly, someone did a later production of that scope as well, which might have better quality glass and waterproofing.

Leupold 'Alaskan' same 7/8" dia and features, looks, etc.
Made in the 90's IIRC and great 'scope. I have a 2.5X version.