Richard I did not say that Remington hulls were interchangeable with Cheddites. Remington hulls are interchangeable with other Remington hulls.

Don't get confused by mixing hulls, some have straight interior walls and some are tapered and use a different wad. Some have a different base wad height and basically there is no difference in high brass or low brass within the same manufacturer, the interior of the hull is the same.