Graf & Sons have some Winchester brass in stock, good price too.

[quote= Federal brass is heavier and requires just a bit less powder for the same velocity. [/quote]

I agree I have always found Winchester brass to be a bit thinner, except for the WSSM'S, necks could be thinner in the WSSM'S. Have not seen the Winchester in WSM though.

Some cause happiness wherever they go; others whenever they go

Oscar Wilde~~