I am new to reloading and will be starting with some 45-70 loads. I have some "Hunters Supply 405 gr. solids .459. Will these work for me in a Browning 1885 single shot? Do I need to slug my barrel and if so how do I proceed with that process...Also will I need Gas Checks. I have unique and Trail Boss powders. I am using Lee Press and dies. Also the bullets appear to be lubes so will I need to ad any further lube to them?