Unfortunately, Sloniksp, the Soviet 76 is just too light as a general field gun to be in the running in WW 2. Now, the 85mm that was to replace it was a bit better neither comes up to the 25pdr or US 105mm in destructiveness. The German 105mm was by comparison to the two Allied pieces a dog of gun. It was overweight, fired a very inferior shell and was just all around a poor design.
Now, the Soviet 76 did have some advantage in terms of what the Red Army needed as artillery. It was a light weapon that could easily be manhandled. This was a big advantage in a poorly mechanized army, something the British and US didn't have to worry about. Also, the 76 was a decent AT gun a role, much like the 25pdr, it was expected to regularly engage in.
But, on the whole the Soviet 76 and 85mm artillery pieces were just too light to compete in WW 2