Larry, the loading manual lists COL for each different bullet. So the JFP would list a different case overall length than a FMJ. The publishers of these manuals take bullet length into account.
Your job is to read carefully, from several sources if necessary, to make sure your COL data is for the proper bullet.
The
LoadBooks series from MidwayUSA is most useful to me: one book per caliber, with many load sources in each book.
Check it out here:
http://www.midwayusa.com/eproductpag...eitemid=424613