The Hornady 10th Edition is my current bible... but any good manual will do.  I actually do comparisons from several manuals.  Hornady lists several weights, and usually lists their bullets... but the data for their 180 gr SP Spitzer bullet can be applied to any 180 gr spitzer... etc. 

The bottom line is to find what works best in your Krag.  Remember, just like people... not all Krags like the same food!