I finally got myself “History of Modern US Military Small Arms Ammunition Vol 1 Revised” by Hackley, Woodin and Scranton recently and currently reading Chapter 3 about the 45 Auto. I have two questions which I hope someone can help with.
At bottom of p.20 and top of p.21, the authors talk about “Frankford Arsenal was authorized to convert 8,000 revolver cases for use in automatic pistol cartridges, this being completed by November 1906”. And “A cartridge without headstamp, narrow extractor groove and more straight-sided bullet may be an example.” I would like to know is there any other differences that one could tell one of these cartridges? I sure would like to see a photo. I suspect that they are rare cartridges?
On pp25-26, the authors discuss the special reduced velocity Model 1911 ball cartridge which was loaded “as early as 1917”. It was made to have a muzzle velocity of about 600 fps and was used to test helmets. Would anyone know what the helmets were made of or would know where I could find the helmet construction details at that period?
Thank you. (I should have bought this book a long time ago).