At the time the decision was made to stick with the 30-06, our army was still training armored divisions with trucks made to look like tanks with plywood...during the depression, there was no money to build tanks...sometimes, troops trained with fake machine guns made of wood. The ammo made in 1918 "might" have needed careful observation to be used, but ammo was made for a long time after 1918.
I am still shooting some '06 made in 1945, BTW.
Switching calibers would have meant rebarreling all those Browning machine guns and BAR's as well...or supplying different ammo for rifles and machine guns...
The British also made the same decision we did, scraping their pipe dream cartridge, and sticking with the 303 when war was inevitable.
MacArthur made many mistakes in his career...and many good ones, like Inchon.
I personally believe he expected the Chinese to come into the Korean conflict, and expected our government to incinerate them with nuclear weapons...
I am still shooting some '06 made in 1945, BTW.
Switching calibers would have meant rebarreling all those Browning machine guns and BAR's as well...or supplying different ammo for rifles and machine guns...
The British also made the same decision we did, scraping their pipe dream cartridge, and sticking with the 303 when war was inevitable.
MacArthur made many mistakes in his career...and many good ones, like Inchon.
I personally believe he expected the Chinese to come into the Korean conflict, and expected our government to incinerate them with nuclear weapons...