I have a large quantity of once fired Kent Velocity Steel hulls for which I cannot seem to find reloading data. The Kent website states that they use Cheddite hulls, and the ones I have match the diagrams in the Lyman 5th ed manual. However, Lyman won't go out on a limb to suggest using their Cheddite data with these hulls. They told me they have no data for them.
Does anyone have a source of reloading data for either steel shot, lead shot, or both for these hulls? I've got several hundred that I'd like to use if possible.
Thanks.