Good Day All!

Was wondering if you kind folks woulnt mind helping me out with a bit of information.

I' d like to buy a rifle. Here' s what I know I want as far as attributes:

Chambered for .338[:-]
Stainless Steel
Composite Stock
bipod

I can find bolt-actions all day long but would really like a semi automatic.

Does one exist and where? Links would be appreciated.