M1 Carbine accuracy

[firstflabn]

It was only later when wartime demands thrust the Carbine into first line issue that accuracy became a thing to considered

1st Infantry Division received carbines on 10 Jul 42, shortly before embarking for UK. Their 'thrusting' began in earnest on 8 Nov 42.

What 'wartime demands' are you referring to? 1st ID looks pretty 'front line' to me.