I analyzed a redirect of mine and this was the result:
HTTP/1.1 301 Moved Permanently
Date: Thu, 25 Oct 2007 11:06:56 GMT
Server: Apache/2.0.54 (Unix) PHP/4.4.7 mod_ssl/2.0.54 OpenSSL/0.9.7e mod_fastcgi/2.4.2 DAV/2 SVN/1.4.2
Content-Type: text/html; charset=iso-8859-1
301 Moved Permanently
The document has moved here.
So, yes, it's a 301 redirect.