He continued with several errors. One item shows a round hole lock screw, which he lists as experimental for GL. It was a manufactured screw circa 1960's for sale to South American armies and is without a vent. They would not use a non vented screw for launching Rifle Grenades. This was made up by a dealer/exporter because there were no huge quantities of lock screws available for export. I have one and know its origin.Jesse did have some errors in his earlier book on the M1that he sent to me
I have the drawings, patent information, and the contractor for the experimental lock screw for the GL's. It is nothing like his picture.
His drawings are incredibly good in showing what an item is. The information about it can be totally off base.
If I recall one of the authors list a Revision 14 bolt for the Garand, yet nobody I know has ever seen one. I have asked several individuals who claim they exist, to post a picture. So far none have.
I want to confirm!