It's been talked about a few time on here. Not a good idea. You could (from what I've read) look at possibly a 338 Edge, 338 RUM, or 338 WM on a small shank.

Here are a couple threads to check out.

http://www.savageshooters.com/showth...ighlight=lapua

http://www.savageshooters.com/showth...ighlight=lapua