I like the Remington hull. They measure about 2 9/16”. I trim them back to 2 1/2” and load them with regular crimp. The problem is Remington primers have been hard to find for two plus years and more costly than hens teeth. Last price I saw was well over $100/1,000. That hurts as I still have some on hand that I overpaid for at $28.00/1,000. Little did I know.