Accurate #2 is a fast powder like Bullseye, W231/HP38 and 700X, as such it is far from ideal in a large case such as the .44 Magnum! If you can find data, the charges will be very low volume compared to case capacity. Low volume in a large case usually results in inconsistent ignition and wide extreme velocity spreads which cause mediocre accuracy at best.

The 44 Mag demands powders in the medium fast burning range
for light loads. Unique, Accurate #5, Universal, etc. are much more likely to give satisfactory results. Check each powder manufacturers web sites for the latest data.