Here is a link to the Weaver base mounts and rings charts.
http://www.weaver-mounts.com

Brownell's also has Warne bases for the M-88/M100 as well.

http://www.brownells.com/aspx/NS/sto...MA+BASES+-+W-Z

Of the 2 choices, Weaver and Warne, I would definately go with the Warne bases and attach a set of Warne Maxima TPA rings to them. You couldn't go wrong with that combination.

http://www.brownells.com/aspx/NS/sto...&s=35165#35165