@rngu it looks like you might be trying to point to an external site rather than internal pages.
The 301 wildcard re-direct would work for your site re-directs if you set it up like:
Old Path: /blog/(.*)
Redirect to Page: /%1
Please let me know if this helps or if you have any additional questions just tag me in your reply 
More information on 301 wildcard re-directs.