For the winchester hulls try Hodgdon.
http://www.hodgdon.com/data/shotshel/12win781-01.php
My favorite load, when I can find these wads, is:
Winchester AA Hull
Remington 209P
WJII Wad
1 oz. Magnum 8's
18.1 gr. Clays
I dont know what to tell you about the Remington hulls, I was never able to find any good data.
http://www.hodgdon.com/data/shotshel/12win781-01.php
My favorite load, when I can find these wads, is:
Winchester AA Hull
Remington 209P
WJII Wad
1 oz. Magnum 8's
18.1 gr. Clays
I dont know what to tell you about the Remington hulls, I was never able to find any good data.