510 grain semi-spitzer, lubed with spg, 64 grains of swiss FFg, 2 vegetable fiber wads in hornady .45-70 cases, and my Remington No.1 is 1.5 MOA to 300 yards, 2-2.5 MOA to 600. Definitely easier to clean than any smokeless gun I own, excepting the rimfires.
The accuracy with smokeless...