I use VV powders for rifle loads, never tried them with shotshells. The most appropriate powders are intended for use in pistols. As we don't have pistols any more, we don't see too much of those powders. The current VV loading manual does not list shotshell loads, but there is a footnote on page 47 regarding this matter. They say:
For 24 gram target loads use N310 or N320.
For 28-32 gram loads use N320 or N330.
For 34-36 grams use N340.
For over 36 grams use N350.
They do not list any powder charges.
Hope that's of some help.
Patrick