Coated bullets work fine with real BP as long as you put a 'LUBE BISCUIT UNDER THE BULLET'...do it that way many times & never a problem.!!! Obviously I'm not saying a really soft lube that may contaminate the powder.
My method is powder then covered with a wax carton wad [ I punch them out of those longlife milk or juice containers ] then the lube, finish with another wax wad over the lube then seat the bullet. Probably long winded for some but works for me.
I call it section loading , as I don't load much over the minimum [ 1cc ] ,I put a filler [ styrofoam cut into round pieces ] on top of the lube before the 2nd wax wad.
Have fun ..welcome to the darkside & if ya' can use the real stuff !!