Cryhavoc101
Donor
Right. So how do you get around the problem of the US? Hitler accepting the StG44 earlier? According to a German historian who wrote the most comprehensive history of the STG Hitler's lack of acceptance delayed the weapon by at least 12 months; by the time it was accepted in mid-1944 it was too late to really tool for it effectively and production was limited...but even more so for the ammo, which remained the major bottleneck for the weapon getting fielded.
So perhaps the POD is that Hitler is convinced to order it into production in mid-1943 so that it is the primary arm of the German army by 1944 so when the Allies land in Normandy they face a hellscape of assault rifles, which prove especially devastating in the close in terrain of Normandy. The impression made is then made on on the Americans, who perhaps partner with the Brits on the .270 or .280?
Works for me!