As far as books go I do have 1000's of military related books . Some good , some bad . Just because it is in a book does not mean it is correct . All it takes is some one who is uninformed to write something and then many people use it as a source and just keep repeating it without checking . Examples . For years "everyone" knew late war Type-99's were unsafe to shoot because it was written , I fought that one for 30 years . Everyone knew the Gew-88 had a .318 bore and that still gets repeated even though the Germanicon military documents say not and there has never been a rifle found with one . Also many original 1889 Gew-88 rifles with the original barrels , bolts and receivers , unmodified were used in WWI with S ammo with no problems . The Japaneseicon long lance torpedo is another one , many books , then Youtubers say how the long lance sunk battle ships at Pear harbor , how Japanese Subs used them to great effect . No battleships at Pearl where hit with long lances , nor were any US ships sunk with them by Subs . How the MG-42 wiped them out at Omaha beach , not so as the main MG's used there were CZ made tripod guns . They did not need to "restart" 10.4mm ammo has they hade millions of rounds still in stock which would have been enough for rifles never meant to be fired . Also the Video guy used the big Carcano bullets for his reloads which are made wrong and are known to break Carcano rifles . Plus they come with a big warning from the maker NOT to use reduced loads . I got some of the first 1000 of those and after finding there problems after much testing I did post warnings about them . So he broke the rifles with bad reloads .