1) Frank De Haas.....He took guns apart to analyze them. So do I, but he was better.
2) Parker Ackley....He did controlled destructive test on guns. So do I, but he was better.
3) Jerry Kuhnhausen.... His books on Colts were so good and his Mauser book so bad... I am just guessing why
4) Frank C Barnes.... I wish I consulted the bible as often as Cartridges of the World.