Here is a little gem: the whole details about the conversion of a standard .30-06 M1919A4 to the 7.62x51, M13 link-using, C5A1 :) https://www.smallarmsreview.com/archive/detail.arc.entry.cfm?arcid=18275 https://www.smallarmsreview.com/archive/detail.arc.entry.cfm?arcid=18276...