In modern artillery extended range, full bore shells with base bleed enhancements have been known to extend range heavily, though at some penalty to accuracy. Would these concepts, both of which were known by WW2 and the former apparently somewhat tested by the Germans for AAA and both for artillery, applied to AAA have improved performance without penalty to accuracy? Supposedly there is some turbulence caused by Base Bleed projectors, while I still haven't found a reason by ERFB wasn't used by anyone in their AAA. The closest that anyone got is the Mark VI QF 3.7 inch British gun that had a liner that smoothed out the driving bands on a shell, which reduced wind resistance.
Could these technologies in WW2 have been introduced to make AAA more effective or were they only viable for artillery, or perhaps only viable post-WW2, but by which time SAMs rendered then unworkable?