The bore of my EUROARMS Springfield Rifle is .577"
After I swaged the Minie ball three times, using a 3/8" wood dowel with the end coated with liquid electrical tape, and engraving hammer to tap it through the die it measured .575" I used a Log Cabin Shop .575213" OS Minie ball. The rifling grooves are .006" deep, three grooves. I plan to paper jacket the Minies.
I used cartridge case oil in the bore of the resizing die. I may polish the inside with J B Bore Brite. No need to chamfer the lead in hole, it is tapered. My die has diamond pattern knurling on the larger part that sits above your vise.
I am pleased with the outcome. Good product that is accurate at .575" stenciled onto the top.