Thank you, glad you enjoy.
View attachment 80248
The US M10 was obsolete by the Battle of the Bulge, but production had already been switched to the 90mm armed Jackson and many of those were also present in the battle. In British service as the Wolverine, many had been upgunned with the 17pdr and named Achilles. Unlike as with the Sherman, the US did not adopt British nomenclature.
The M!0 was only good at relatively short range or against relatively more weakly protected German AFV's such as the Pz4. Although this was still the workhorse of the panzer divisions Panthers, Tigers etc were more common in the elite Waffen SS units facing the Allies in the Bulge, which frontally at least, the M10 would struggle to penetrate. The many weaker German Volksturm units only had StuGs in support, so the M10 could be useful against many of them, especially in a flank shot.
The open top and relatively slow traverse were the main operational problems for troops and despite US doctrine for tank destroyers to support tanks, in practice M10s were reported to fire many more HE than AP rounds, similar to the tanks they were supposed to support. However, given the scale of the battles in NW Europe and the relative scarcity of AFV's on the ground, this may not be too surprising.