Regarding accuracy post war tests found that the dispersion at 1000m for the M1 76mm was about .26, the German 75/42 .29, 17pdr .39, US 90mm .32 and Russian guns in the .5 to .6 range. 17pdr firing Sabot at 1,000m was an impressive .9 to 1.4 which is quite a gap :p
(That means it would hit...