Not true. Revolvers—unless they've changed drastically in the last 3 weeks since I fired one—have cylinders that index, aligning the next chamber, once per trigger pull whether the function is double action or single action. Such a cartridge, would require significant redesign of any revolver chambering and firing it.
Not only is the suggested cartridge design very complex, but so would a revolver designed to fire such a cartridge.
What problem or need does the proposed munition design solve or satisfy, respectively?
If someone requires a handgun that fires 12, instead of six, cartridges at a single loading, it is far more cost-effective and simpler to acquire a semi-automatic firearm of quality manufacture.
Semi-automatic pistols are every bit as accurate, reliable, and even easier to clear of malfunctions than revolvers, especially one so convoluted and arcane in design.