I know this is heresy but I use all 12 gauge hulls interchangeably. With the same load of powder, primers, and shot they all seem to work with very little difference regardless of which hull I stuff them into. I generally miss a few clay birds out of every 25, but I don't blame the load. Swapping wads seems to have more impact than changing hulls.
As your skill level improves, you will probably find you want more consistent shells than you are loading with this approach.
There are loads that work well with all the tapered interior Winchester and Remington hulls.
There are loads that work well with the straight wall hulls.
But there are no good loads that will result in consistent speeds when loaded willy nilly in both type hulls.
Michael
