I have a C-Sharps 1885 in .38/55 with a 29-1//2" barrel. I want to shoot Smokeless and have been shooting 9.0 Gr. of Unique with a 255 gr. .278 dia. coated bullet. I am not getting the accuracy that I want, but do not know which direction to go. The weight of my bullets and powder charge are dead on. I tried case filler to hold the charge back on the primer, but the pressure variation scares me. I do not know if I should go to a different bullet weight or design, or different powder. Smokeless Powders for this cartridge are now hard to find but if I can locate a pound, I am sure it will load many rounds. What is the most favored bullet and weight for this Rifle and barrel length?